185 entries under adjective topic. ×

16
unintelligent(characteristic, weak, simple, ability)
14
vacuous(characteristic, stupid, thoughtless, stupidity)
14
preposterous(characteristic, wrong, wild, foolish)
14
ridiculous(characteristic, weak, simple, wild)
14
lunatic(characteristic, weak, simple, wild)
14
pointless(characteristic, simple, silly, foolish)
13
imbecilic(characteristic, weak, simple, silly)
13
boneheaded(characteristic, silly, stupid, impractical)
13
dumb(characteristic, foolish, crazy, insane)
13
insensate(characteristic, ability, stupid, planned)
13
irrational(characteristic, weak, simple, wrong)
13
meaningless(characteristic, simple, silly, stupid)
11
birdbrained(characteristic, silly, foolish, stupid)
11
unaware(characteristic, stupidity, foolishness)
10
daft(characteristic, weak, simple, wild)
10
loony(characteristic, weak, simple, wild)
10
unreasonable(characteristic, weak, simple, silly)
10
lamebrained(characteristic, stupid, stupidity, foolishness)
9
daffy(characteristic, weak, simple, silly)
9
inadequate(characteristic, stupidity, inadequacy, foolishness)
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APASmart Define. (2015). fatuous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fatuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatuous thesaurus" https://smartdefine.org/fatuous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fatuous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fatuous/thesaurus/synonyms>.
MLASmart Define. "fatuous thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/fatuous/thesaurus/synonyms>