used informally Stupid.
synonyms: blockheaded, boneheaded, duncical, duncish, fatheaded, loggerheaded, thick, thickheaded, wooden-headed.
Roget 499:
unintelligent
[Applied to persons],
unintellectual,
unreasoning;
mindless,
witless,
reasoningless†,
brainless;
halfbaked;
having no head
etc.
498;
not bright
etc.
498;
inapprehensible†.
weak headed,
addle headed,
puzzle headed,
blunder headed,
muddle headed,
muddy headed,
pig headed,
beetle headed,
buffle headed†,
chuckle headed,
mutton headed,
maggoty headed,
grossheaded†;
beef headed,
fat witted,
fat-headed.
weak-minded,
feeble-minded;
dull minded,
shallow minded,
lack-brained;
rattle-brained,
rattle headed;
half witted,
lean witted,
short witted,
dull witted,
blunt-witted,
shallow-pated†,
clod-pated†,
addle-pated†,
addle-brained†;
dim-sighted,
short-sighted;
thick-skulled;
weak in the upper story.
shallow,
borne,
weak,
wanting,
soft,
sappy,
spoony;
dull,
dull as a beetle;
stupid,
heavy,
insulse†,
obtuse,
blunt,
stolid,
doltish;
asinine;
inapt
etc.
699;
prosaic
etc.
843;
hebetudinous†.
childish,
child-like;
infantine†,
infantile,
babyish,
babish†;
puerile,
anile;
simple
etc.
(credulous)
486;
old-womanish.
fatuous,
idiotic,
imbecile,
driveling;
blatant,
babbling;
vacant;
sottish;
bewildered
etc.
475.
blockish†,
unteachable Boeotian,
Boeotic;
bovine;
ungifted,
undiscerning†,
unenlightened,
unwise,
unphilosophical†;
apish;
simious†.
foolish,
silly,
senseless,
irrational,
insensate,
nonsensical,
inept;
maudlin.
narrow-minded
etc.
481;
bigoted
etc.
(obstinate)
606;
giddy
etc.
(thoughtless)
458;
rash
etc.
863;
eccentric
etc.
(crazed)
503.
[Applied to actions]
foolish,
unwise,
injudicious,
improper,
unreasonable,
without reason,
ridiculous,
absurd,
idiotic,
silly,
stupid,
asinine;
ill-imagined,
ill-advised,
ill-judged,
ill-devised;
mal entendu [Fr.];
inconsistent,
irrational,
unphilosophical†;
extravagant
etc.
(nonsensical)
497;
sleeveless,
idle;
pointless,
useless
etc.
645;
inexpedient
etc.
647;
frivolous
etc.
(trivial)
643.
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