fallaciousadj.

Brit.

/fəˈleɪʃəs/, U.S.

/fəˈleɪʃəs/

Forms: late Middle English– fallacious, 1500s–1700s falacious, 1500s fallacyous.

Origin: A borrowing from French. Etymon: French fallacieux.

Etymology: < Middle French fallacieux (14th cent.; French fallacieux ) < classical Latin fallāciōsus full of deception, delusive (2nd cent. a.d.) < fallācia (see fallacy n.) + -ōsus -ous suffix. Compare earlier fallace adj.

1. Of an argument, syllogism, line of reasoning, etc.: that contains or constitutes a fallacy (see fallacy n. 2a); unsoundly or defectively reasoned or argued.

ΘΚΠ

the mind > mental capacity > understanding > reason, faculty of reasoning > misleading argument, sophistry > [adjective]

fallacious?1473

sophistical1483

Jesuitish1602

sophistic1605

Jesuitical1613

Jesuitic1640

casuistical1648

specious1651

casuistic1660

casual1672

fine-drawn1681

scholastic1700

scholasticated1772

verbalistic1879

?1473 W. Caxton tr. R. Le Fèvre Recuyell Hist. Troye (1894) II. lf. 195 Yf by force of thy sophymes and fallacious [Fr. falacieux] argumentes thou make me Innocent.

1517 S. Hawes Pastime of Pleasure (1928) xi. 45 Seuen sophyms full harde and fallacyous This Ydre vsed in perposycyon Vnto the people.

1590 Remonstrance ii. 32 Your fallacious Rule and maxime is without reason, without religion, without rule.

a1624 R. Crakanthorpe Vigilius Dormitans (1631) iv. 16 The holy Council hauing now fully discovered the error of the Popes position, and the fallacious proofe which he used to uphold the same.

1651 R. Baxter Plain Script. Proof Infants Church-membership & Baptism 228 I undertake to prove every Argument of his..to be vain and fallacious.

1710 Lady M. W. Montagu Let. 20 July (1965) I. 46 They bring them a thousand fallacious Arguments their excessive ignorance hinders them from refuteing.

1788 T. Reid Aristotle's Logic v. §3. 116 Such fallacious syllogisms are considered in this treatise.

1864 F. C. Bowen Treat. Logic ix. 294 Those fallacious reasonings which are correct in form.

1890 F. Cajori Teaching & Hist. Math. v. 375 Whatever reasoning would be fallacious and wrong when placed in an advanced treatise must be equally fallacious and wrong when placed in an elementary book.

1932 Proc. Royal Soc. A. 135 472 It is suggested that the widely used Morse formula rests on a partly fallacious argument.

1985 Times Lit. Suppl. 4 Jan. 4/4 If the West, following the fallacious logic offered by some of those here, inclines toward unilateral disarmament.

2003 T. Talbott in R. A. Parry & C. H. Partridge Universal Salvation? ii. 29 It is truly astonishing how many commentators draw virtually the same fallacious inference at this point.

†a. Of a person: deceitful; untrustworthy. Obsolete.

ΘΚΠ

the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > [adjective]

ficklea1000

hinderyeapc1000

swikelc1000

as right (also stiff, straight, crooked, etc.) as a ram's hornOE

fakenOE

swikefulc1100

frakelc1175

swikec1175

wrenchfulc1225

wielfulc1275

ginfulc1300

guileful13..

treacherousc1330

guilesomea1382

guilousc1384

enginousa1393

deceivant1393

treacherc1400

serpentinec1422

deceivousa1425

guilyc1430

beguilous1483

slapea1500

fallacious1509

treget1519

gaudya1529

beguileful1530

Spanish1530

juggling?1531

snakish1532

prestigious?1534

knack-hardy1549

pratting1570

fogging1585

snakya1586

abusive1595

faithless1597

faiterous1600

guiled1600

trompant1605

amusing1609

braida1616

dodging1625

Ulyssean1639

tricksome1648

knackish1660

hocus-pocus1668

bubbling1675

rusé1689

tricking1697

trickish1705

lurching1728

tricksy1766

trickful1775

tricky1786

slippy1828

shirky1847

dodgy1861

sidewinding1902

slithery1902

hyping1968

deceiteous-

1509 H. Watson tr. S. Brant Shyppe of Fooles (de Worde) vii. sig. B.viii O fallacyous [Fr. fallacieux] detractours and reportours full of malyce and enuye.

1620 J. Webbe tr. Cicero Familiar Epist. iii. x. 135 If it be true, that fallacious, and double hearted men, howsoeuer, haue a regard to their peculiar profits.

1663 A. Cowley Complaint viii Teach me not then, O thou fallacious Muse, The Court..t'accuse.

a1726 W. Lupton 12 Serm. Several Occasions (1729) iv. 184 No Artful and Insinuating, no Designing and Fallacious men.

1769 E. Burke Observ. Late State Nation 13 This author..is only slovenly and inaccurate, and not fallacious.

1863 Daily Evening Bull. (San Francisco) 26 Mar. 1/2 Only see what fallacious people who do this sort of thing get into.

1883 R. L. Stevenson Silverado Squatters 77 Yet the boy was patently fallacious; and for that matter a most unsympathetic urchin.

1915 C. E. Hatfield Tug of Millstone xiv. 100 It implies that I am rather a fallacious old codger..to be telling what I think about religion when I've never put much of it into actual practice.

b. Of a thing: deceptive, misleading.

ΘΚΠ

the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > [adjective] > deceptive, misleading

swikelc1000

fellc1300

deceivable1303

falselya1350

blind1393

deceivant1393

fallacec1400

sinister1411

deceivousa1425

deceitful1483

fallacious1509

deceiving?a1513

falsesome1533

sophistical1558

misconceited1595

deceptive1611

abusable1660

self-deceptive1810

flambuginous1813

false1842

funny1903

mamaguy1973

braidie-

the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > deception by illusion, delusion > [adjective] > of things

fallacious1509

1509 H. Watson tr. S. Brant Shyppe of Fooles (de Worde) xxi. sig. F.iii^v The fooles that be neuer contente with theyr propre goodes, but by cautelles fallacyous [Fr. grans] reteyneth other mennes goodes.

1596 Z. Jones tr. M. Barleti Hist. G. Castriot vi. 202 Thus with iniuries and scoffes were these deceiptfull messengers dismissed together with their guilfull and fallacious presents.

1651 N. Biggs Matæotechnia Medicinæ Praxeωs ⁋305 A fallacious word, signifying contrary to what it pretends.

1733 P. Shaw tr. F. Bacon Hist. Life & Death vi, in Philos. Wks. III. 368 Even Greyness, happening early, is fallacious; for many that were soon grey, have lived long after it.

1784 J. King Cook's Voy. Pacific III. v. vi. 108 A very fallacious measure.

1827 J. Bentham Rationale Judicial Evid. III. v. iii. 55 Individuals, really innocent, have sunk under a load of imputation heaped upon them by fallacious circumstantial evidence.

1856 J. A. Froude Hist. Eng. (1858) II. x. 434 No evidence is more fallacious than that which rests upon isolated facts.

1935 G. Greene Eng. made Me i. 24 Immediately straightening the fallacious Harrow tie..he was off and away.

1958 Manch. Guardian 26 Feb. 5/3 The common (though fallacious) phrase ‘happy as a king’.

2016 Afternoon Voice (India) (Nexis) 14 Feb. [He] asked officials to take action against companies coming out with fallacious advertisements related to ‘wonder’ drugs and medical products.

3. That confounds or fails to live up to expectations; that causes disappointment; delusive.

ΘΚΠ

the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > deception by illusion, delusion > [adjective]

lyinga1225

deceptoryc1430

mockinga1529

sleight1533

prestigious?1534

illudinga1547

fallible1552

delusory1588

prestigiatory1588

illusory1599

delusive1607

deceptiousa1616

deludinga1616

flatteringa1616

delusorious1625

fallacious1626

ludificatorya1677

illusive1679

will-o'-the-wisp1682

prestigiating1716

shama1721

false1768

deceptitious1827

deceptional1830

phantasm1834

will-o'-the-wispish1842

will-o'-the-wispy1857

illusionistic1911

illusional1942

1626 J. Florio et al. tr. T. Boccalini New-found Politicke i. 44 The silly and vnhappy wretch, hauing continually bin fed with diuers hopes of fallacious expectations [It. fallaci spettatiue], without substance of any good.

1667 J. Milton Paradise Lost ix. 1046 That fallacious Fruit.

1741 C. Middleton Hist. Life Cicero II. x. 385 False and fallacious hopes.

1776 T. Paine Common Sense 24 Reconciliation is now a fallacious dream.

1835 J. Ross Narr. Second Voy. North-west Passage xiv. 222 The prognosticator..might have lost his fame by trusting to a fallacious omen.

1877 W. Sparrow Serm. i. 11 Nor is it a deceitful joy..a fallacious peace.

1947 Classical Philol. 42 252/2 Medieval writers most commonly chose classical anecdotes to illustrate their warnings against the fallacious glory of the world.

2014 Welwyn & Hatfield Times (Nexis) 10 Dec. A Chancellor who confirmed that almost everything he said before on the economy was wrong..audaciously selling us fallacious hopes as to the future.

4. Erroneous, mistaken, false.

ΚΠ

1685 C. Williams tr. R. Le Vayer de Boutigny Famous Romance Tarsis & Zelie 163 Having understood by him who gave it me, the fallacious Reports that ran abroad of the Marriage of Telesile..I took Horse the same Hour.

1716 E. Ward St. Paul's Church 19 Some, who have other distant Views, Ill-grounded on fallacious News, Perplex their penetrating Souls About Augustus and his Poles.

1780 J. Cartwright People's Barrier against Undue Infl. vi. 138 If the..advocates for annual parliaments shall be prevailed upon to join in the requisition [for triennial parliament], under the fallacious notion that it will be making one step towards their own object [etc.].

1819 Gentleman's Mag. Oct. 291/1 The fallacious assertion..that a great majority..are much more distressed..with..the general state of things, than..during the late War.

1898 Argosy May 374 They hurried along the road with the fallacious idea that gold was simply to be shoveled into bags and carted to Melbourne.

1906 F. M. Parsons Garrick & his Circle 245 There is an edifying, though probably fallacious, report of Garrick's having remarked that he could pronounce ‘Mesopotamia’ in such a way as to move any audience to tears.

1951 A. Koestler Age of Longing i. i. 25 We can only achieve a constructive attitude if we rid ourselves of fallacious guilt-feelings about the past.

2003 D. Dean Is Truth out There? p. ix In spite of the Internet's reputation for containing a great deal of fallacious information, it still serves as an ideal place for reviewing..ideas.

This entry has been updated (OED Third Edition, September 2017; most recently modified version published online March 2022).

单词	fallacious
释义	fallaciousadj. Brit. /fəˈleɪʃəs/, U.S. /fəˈleɪʃəs/ Forms: late Middle English– fallacious, 1500s–1700s falacious, 1500s fallacyous. Origin: A borrowing from French. Etymon: French fallacieux. Etymology: < Middle French fallacieux (14th cent.; French fallacieux ) < classical Latin fallāciōsus full of deception, delusive (2nd cent. a.d.) < fallācia (see fallacy n.) + -ōsus -ous suffix. Compare earlier fallace adj. 1. Of an argument, syllogism, line of reasoning, etc.: that contains or constitutes a fallacy (see fallacy n. 2a); unsoundly or defectively reasoned or argued. ΘΚΠ the mind > mental capacity > understanding > reason, faculty of reasoning > misleading argument, sophistry > [adjective] fallacious?1473 sophistical1483 Jesuitish1602 sophistic1605 Jesuitical1613 Jesuitic1640 casuistical1648 specious1651 casuistic1660 casual1672 fine-drawn1681 scholastic1700 scholasticated1772 verbalistic1879 ?1473 W. Caxton tr. R. Le Fèvre Recuyell Hist. Troye (1894) II. lf. 195 Yf by force of thy sophymes and fallacious [Fr. falacieux] argumentes thou make me Innocent. 1517 S. Hawes Pastime of Pleasure (1928) xi. 45 Seuen sophyms full harde and fallacyous This Ydre vsed in perposycyon Vnto the people. 1590 Remonstrance ii. 32 Your fallacious Rule and maxime is without reason, without religion, without rule. a1624 R. Crakanthorpe Vigilius Dormitans (1631) iv. 16 The holy Council hauing now fully discovered the error of the Popes position, and the fallacious proofe which he used to uphold the same. 1651 R. Baxter Plain Script. Proof Infants Church-membership & Baptism 228 I undertake to prove every Argument of his..to be vain and fallacious. 1710 Lady M. W. Montagu Let. 20 July (1965) I. 46 They bring them a thousand fallacious Arguments their excessive ignorance hinders them from refuteing. 1788 T. Reid Aristotle's Logic v. §3. 116 Such fallacious syllogisms are considered in this treatise. 1864 F. C. Bowen Treat. Logic ix. 294 Those fallacious reasonings which are correct in form. 1890 F. Cajori Teaching & Hist. Math. v. 375 Whatever reasoning would be fallacious and wrong when placed in an advanced treatise must be equally fallacious and wrong when placed in an elementary book. 1932 Proc. Royal Soc. A. 135 472 It is suggested that the widely used Morse formula rests on a partly fallacious argument. 1985 Times Lit. Suppl. 4 Jan. 4/4 If the West, following the fallacious logic offered by some of those here, inclines toward unilateral disarmament. 2003 T. Talbott in R. A. Parry & C. H. Partridge Universal Salvation? ii. 29 It is truly astonishing how many commentators draw virtually the same fallacious inference at this point. 2. †a. Of a person: deceitful; untrustworthy. Obsolete. ΘΚΠ the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > [adjective] ficklea1000 hinderyeapc1000 swikelc1000 as right (also stiff, straight, crooked, etc.) as a ram's hornOE fakenOE swikefulc1100 frakelc1175 swikec1175 wrenchfulc1225 wielfulc1275 ginfulc1300 guileful13.. treacherousc1330 guilesomea1382 guilousc1384 enginousa1393 deceivant1393 treacherc1400 serpentinec1422 deceivousa1425 guilyc1430 beguilous1483 slapea1500 fallacious1509 treget1519 gaudya1529 beguileful1530 Spanish1530 juggling?1531 snakish1532 prestigious?1534 knack-hardy1549 pratting1570 fogging1585 snakya1586 abusive1595 faithless1597 faiterous1600 guiled1600 trompant1605 amusing1609 braida1616 dodging1625 Ulyssean1639 tricksome1648 knackish1660 hocus-pocus1668 bubbling1675 rusé1689 tricking1697 trickish1705 lurching1728 tricksy1766 trickful1775 tricky1786 slippy1828 shirky1847 dodgy1861 sidewinding1902 slithery1902 hyping1968 deceiteous- 1509 H. Watson tr. S. Brant Shyppe of Fooles (de Worde) vii. sig. B.viii O fallacyous [Fr. fallacieux] detractours and reportours full of malyce and enuye. 1620 J. Webbe tr. Cicero Familiar Epist. iii. x. 135 If it be true, that fallacious, and double hearted men, howsoeuer, haue a regard to their peculiar profits. 1663 A. Cowley Complaint viii Teach me not then, O thou fallacious Muse, The Court..t'accuse. a1726 W. Lupton 12 Serm. Several Occasions (1729) iv. 184 No Artful and Insinuating, no Designing and Fallacious men. 1769 E. Burke Observ. Late State Nation 13 This author..is only slovenly and inaccurate, and not fallacious. 1863 Daily Evening Bull. (San Francisco) 26 Mar. 1/2 Only see what fallacious people who do this sort of thing get into. 1883 R. L. Stevenson Silverado Squatters 77 Yet the boy was patently fallacious; and for that matter a most unsympathetic urchin. 1915 C. E. Hatfield Tug of Millstone xiv. 100 It implies that I am rather a fallacious old codger..to be telling what I think about religion when I've never put much of it into actual practice. b. Of a thing: deceptive, misleading. ΘΚΠ the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > [adjective] > deceptive, misleading swikelc1000 fellc1300 deceivable1303 falselya1350 blind1393 deceivant1393 fallacec1400 sinister1411 deceivousa1425 deceitful1483 fallacious1509 deceiving?a1513 falsesome1533 sophistical1558 misconceited1595 deceptive1611 abusable1660 self-deceptive1810 flambuginous1813 false1842 funny1903 mamaguy1973 braidie- the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > deception by illusion, delusion > [adjective] > of things fallacious1509 1509 H. Watson tr. S. Brant Shyppe of Fooles (de Worde) xxi. sig. F.iii^v The fooles that be neuer contente with theyr propre goodes, but by cautelles fallacyous [Fr. grans] reteyneth other mennes goodes. 1596 Z. Jones tr. M. Barleti Hist. G. Castriot vi. 202 Thus with iniuries and scoffes were these deceiptfull messengers dismissed together with their guilfull and fallacious presents. 1651 N. Biggs Matæotechnia Medicinæ Praxeωs ⁋305 A fallacious word, signifying contrary to what it pretends. 1733 P. Shaw tr. F. Bacon Hist. Life & Death vi, in Philos. Wks. III. 368 Even Greyness, happening early, is fallacious; for many that were soon grey, have lived long after it. 1784 J. King Cook's Voy. Pacific III. v. vi. 108 A very fallacious measure. 1827 J. Bentham Rationale Judicial Evid. III. v. iii. 55 Individuals, really innocent, have sunk under a load of imputation heaped upon them by fallacious circumstantial evidence. 1856 J. A. Froude Hist. Eng. (1858) II. x. 434 No evidence is more fallacious than that which rests upon isolated facts. 1935 G. Greene Eng. made Me i. 24 Immediately straightening the fallacious Harrow tie..he was off and away. 1958 Manch. Guardian 26 Feb. 5/3 The common (though fallacious) phrase ‘happy as a king’. 2016 Afternoon Voice (India) (Nexis) 14 Feb. [He] asked officials to take action against companies coming out with fallacious advertisements related to ‘wonder’ drugs and medical products. 3. That confounds or fails to live up to expectations; that causes disappointment; delusive. ΘΚΠ the mind > mental capacity > knowledge > conformity with what is known, truth > deceit, deception, trickery > deception by illusion, delusion > [adjective] lyinga1225 deceptoryc1430 mockinga1529 sleight1533 prestigious?1534 illudinga1547 fallible1552 delusory1588 prestigiatory1588 illusory1599 delusive1607 deceptiousa1616 deludinga1616 flatteringa1616 delusorious1625 fallacious1626 ludificatorya1677 illusive1679 will-o'-the-wisp1682 prestigiating1716 shama1721 false1768 deceptitious1827 deceptional1830 phantasm1834 will-o'-the-wispish1842 will-o'-the-wispy1857 illusionistic1911 illusional1942 1626 J. Florio et al. tr. T. Boccalini New-found Politicke i. 44 The silly and vnhappy wretch, hauing continually bin fed with diuers hopes of fallacious expectations [It. fallaci spettatiue], without substance of any good. 1667 J. Milton Paradise Lost ix. 1046 That fallacious Fruit. View more context for this quotation 1741 C. Middleton Hist. Life Cicero II. x. 385 False and fallacious hopes. 1776 T. Paine Common Sense 24 Reconciliation is now a fallacious dream. 1835 J. Ross Narr. Second Voy. North-west Passage xiv. 222 The prognosticator..might have lost his fame by trusting to a fallacious omen. 1877 W. Sparrow Serm. i. 11 Nor is it a deceitful joy..a fallacious peace. 1947 Classical Philol. 42 252/2 Medieval writers most commonly chose classical anecdotes to illustrate their warnings against the fallacious glory of the world. 2014 Welwyn & Hatfield Times (Nexis) 10 Dec. A Chancellor who confirmed that almost everything he said before on the economy was wrong..audaciously selling us fallacious hopes as to the future. 4. Erroneous, mistaken, false. ΚΠ 1685 C. Williams tr. R. Le Vayer de Boutigny Famous Romance Tarsis & Zelie 163 Having understood by him who gave it me, the fallacious Reports that ran abroad of the Marriage of Telesile..I took Horse the same Hour. 1716 E. Ward St. Paul's Church 19 Some, who have other distant Views, Ill-grounded on fallacious News, Perplex their penetrating Souls About Augustus and his Poles. 1780 J. Cartwright People's Barrier against Undue Infl. vi. 138 If the..advocates for annual parliaments shall be prevailed upon to join in the requisition [for triennial parliament], under the fallacious notion that it will be making one step towards their own object [etc.]. 1819 Gentleman's Mag. Oct. 291/1 The fallacious assertion..that a great majority..are much more distressed..with..the general state of things, than..during the late War. 1898 Argosy May 374 They hurried along the road with the fallacious idea that gold was simply to be shoveled into bags and carted to Melbourne. 1906 F. M. Parsons Garrick & his Circle 245 There is an edifying, though probably fallacious, report of Garrick's having remarked that he could pronounce ‘Mesopotamia’ in such a way as to move any audience to tears. 1951 A. Koestler Age of Longing i. i. 25 We can only achieve a constructive attitude if we rid ourselves of fallacious guilt-feelings about the past. 2003 D. Dean Is Truth out There? p. ix In spite of the Internet's reputation for containing a great deal of fallacious information, it still serves as an ideal place for reviewing..ideas. This entry has been updated (OED Third Edition, September 2017; most recently modified version published online March 2022). < adj.?1473
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