foolishlyadv.
/ˈfuːlᵻʃli/, U.S. /ˈfulᵻʃli/ In a foolish manner; without good sense or judgement.
ΘΚΠ
the mind > mental capacity > lack of understanding > foolishness, folly > [adverb]
unwiselyc897
dizzilyc1175
folly?c1225
canglichec1230
mazedlya1250
follilyc1330
unskilfully1340
unwittily1362
lewdlyc1380
nicelya1387
fondlya1450
nicea1450
foolishlyc1450
foliously1481
ineptly1523
peevishly?1529
simply1535
insipiently1536
senselessly1561
fonly1579
sillilyc1598
perperously1657
insipidly1699
daftly1724
silly1731
stupid?1757
dawkinly1763
fool-like1800
unsagely1801
spoonily1861
assishly1863
ill-advisedly1879
c1450 (?c1425) E. Hull tr. Seven Psalms (1995) 46 In þys þou asuredyst þe ful folysschly and puttyst my loue in vncure as longe as worschyp and grete noblesse and worldly joye floysschyd in þe.
1490 W. Caxton tr. Foure Sonnes of Aymon (1885) ix. 243 ‘Alas,’ sayd Reynawde, ‘ye speke folysly.’
1523 Ld. Berners tr. J. Froissart Cronycles I. cclix. f. clviv/2 Than they knewe well that they had foolysshely aduentured them selfe.
1561 N. Winȝet Exhortation Marie Q. Scottis in Wks. (1888) I. 21 Quha fuleschlie assentit to thair prydefull arrogance.
1651 H. More Second Lash of Alazonomastix 55 I am sure the world is not so foolishly credulous as to beleeve so.
1795 E. Burke Corr. IV. 327 The Catholics have foolishly..disarmed themselves.
1839 H. Hallam Introd. Lit. Europe ii. cvi. §8 It was said foolishly..of Shakspeare, and we may be sure untruly, that he never blotted a line.
1886 J. Morley On Compromise (new ed.) 148 Opinions..foolishly and unreasonably, associated with pain.
1907 J. H. Patterson Man-eaters of Tsavo ix. 101 Rather foolishly, I at once scrambled down from the tree and walked up towards him [sc. the lion].
2018 Star (S. Afr.) (Nexis) 3 Apr. 8 He called a press conference where we all foolishly thought he would resign.
This entry has been updated (OED Third Edition, December 2020; most recently modified version published online March 2022).
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adv.c1450