coinstantaneousadj.

/kəʊɪnstənˈteɪniːəs/

Etymology: see co- prefix 3.

Occurring, taking place, or existing at the same instant; exactly simultaneous.

ΘΚΠ

the world > time > relative time > simultaneity or contemporaneousness > [adjective]

altogether?c1400

concurrent1495

contemporana1500

unison1582

coincident1598

coetaneal1614

coactivea1616

contemporal1621

synchronisticalc1624

coetanean1625

coetaneous1649

coinstantanean1652

synchronical1652

simultal1654

contemporary1656

contemporaneous1659

simultaneousa1660

coevous1660

synchronal1660

coexistent1662

implicit1662

synchronous1669

coexistinga1676

synchronistic1685

coeval1714

contemporany1721

synchronizinga1727

joint1765

coinstantaneous1768

consentaneous1775

coinciding1786

conterminating1805

synchronic1833

coincidental1845

parallel1859

homochronous1876

monochronic1905

co-occurring1951

co-occurrent1954

1768 A. Tucker Light of Nature Pursued II. iii. 30 His acting and his compleat knowledge of the manner most expedient to be followed in acting are co-instantaneous.

1794 G. Adams Lect. Nat. & Exper. Philos. I. iv. 142 Which of these is first we cannot say, for they seem co-instantaneous.

1822 C. Lamb in London Mag. Mar. 284/1 A pun, and its recognitory laugh, must be co-instantaneous.

1863 C. Patmore Faithful for Ever xviii, in Angel in House (ed. 3) II. 105 A blinding flash, And close, co-instantaneous crash.

Derivatives

coinstantaˈneity n.

ΘΚΠ

the world > time > relative time > simultaneity or contemporaneousness > [noun]

synchronism1588

concurrency1597

concurrence1605

contemporationa1638

contemporaneity1644

coincidence1650

simultaneitya1651

contemporaneousness1662

contermination1673

simulty1677

simultaneousness1786

coinstantaneitya1834

coinstantaneousness1848

onceness1866

synchrony1880

consentaneousness1882

synchroneity1909

a1834 S. T. Coleridge Lit. Remains (1836) I. 222 The co-instantaneity of the plan and the execution.

coinstanˈtaneously adv.

ΘΚΠ

the world > time > relative time > simultaneity or contemporaneousness > [adverb]

on (or in) one sitheeOE

togethersc1175

togetherc1200

at once?c1225

at one shiftc1325

jointly1362

at one strokec1374

with that ilkec1390

at one shipea1400

withc1440

at a timec1485

at (in) one (an) instant1509

all at a shove1555

pari passu1567

in (also at, with) one breath1590

in that ilkec1590

with the same1603

in one1616

concurrently1648

concurringly1650

contemporarily1669

simultaneously1675

synchronistically1684

coevallya1711

in (also with) the same breath1721

synchronically1749

at a slap1753

synchronously1793

contemporaneously1794

coinstantaneously1807

coetaneouslya1817

consentaneously1817

at one or a sweep1834

coincidentally1837

at the very nonce1855

one time1873

coincidently1875

in parallel1969

real time1993

1807 R. Southey Lett. from Eng. III. lxii. 157 Writing flows from the thoughts of the angels, or with their thoughts, appearing so coinstantaneously as if thought cast itself upon the paper.

1809–10 S. T. Coleridge Friend (ed. 3) III. 251 They started up..like men out of an ambush..so co-instantaneously did they all obey the summons.

1839 C. Darwin in R. Fitzroy & C. Darwin Narr. Surv. Voy. H.M.S. Adventure & Beagle III. xii. 260 Moved sometimes coinstantaneously, sometimes in regular order.

coinstanˈtaneousness n.

ΘΚΠ