acerebraladj.
/ˌeɪsᵻˈriːbr(ə)l/, /(ˌ)eɪˈsɛrᵻbr(ə)l/, U.S. /ˌeɪsəˈribrəl/, /eɪˈsɛrəbrəl/ Lacking a brain, that has had the brain removed; (hence) unintelligent, unthinking. Cf. brainless adj.
ΘΚΠ
the mind > mental capacity > lack of understanding > [adjective]
unwittyc1000
heartlessa1382
meana1387
conceitless?c1425
insensuat1508
insensate1528
insensible?1531
miskenning1533
unsensible1560
witless1562
unfraught1587
unconceiving1593
stupid1595
small-knowing1598
surd1601
ununderstanding1611
unapprehensible1613
unperceiving?1623
unapprehensive1624
inapprehending1652
incomprehensive1652
inapprehensive1653
impenetrative1684
blind1692
uncomprehensive1694
unpenetrating1701
unmeaning1704
vacant1712
gilly-gaupus1754
unacute1775
unapprehending1794
unpenetrative1795
unwitted1828
uncomprehending1838
irrecognizant1845
vacuous1848
incomprehending1881
mush-headed1884
wantwit1894
doofus1967
acerebral1968
brain-dead1972
goofus1981
1828 Brookesian Mus. i. 6 Cast of the bust of an acerebral fœtus.
1898 Lancet 10 Sept. 716/2 To show how completely the brain is an optic organ absolute blindness could never be produced, for the acerebral pigeon avoids obstacles.
1968 Punch 31 July 157/2 Some urge in accordance with the principles of Darwinism has merged it [sc. the public] into one worldwide, multicelled, acerebral organism.
1990 Chicago Tribune 27 May xiv. 6/4 Should he corner you later, you can explain that your remark was merely an example of acerebral abecedarianism—brainless alphabetization.
2000 Taxon 49 340 The old ‘general public’ is now more or less acerebral, if not acephalic.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).
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adj.1828