287 entries under adjective topic. ×

6
imbecile(dull, simple, silly, foolish)
6
senseless(dull, simple, slow, silly)
6
thickheaded(simple, ability, slow, stupid)
5
weak-minded(dull, simple, slow, stupid)
5
acquiescent(calm, quiet, humble, shy)
5
answerless(calm, quiet, humble, shy)
5
boneheaded(simple, slow, stupid, impulsive)
5
bovine(dull, heavy, stupid, impassive)
5
can't say boo to a goose(calm, quiet, humble, shy)
5
clueless
5
dotty
5
lamblike(calm, quiet, humble, shy)
5
mindless(dull, simple, slow, silly)
5
screwy
5
still(verb, adverb, calm, dull)
5
tight-lipped(close, quiet, soft, low)
5
unanswered(calm, quiet, humble, shy)
5
uncommunicative(close, quiet, soft, low)
5
unreciprocated(calm, quiet, humble, shy)
5
without response(calm, quiet, humble, shy)
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APASmart Define. (2016). dumb thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dumb/thesaurus/synonyms
ChicagoSmart Define. 2016. "dumb thesaurus" https://smartdefine.org/dumb/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dumb thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dumb/thesaurus/synonyms>.
MLASmart Define. "dumb thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/dumb/thesaurus/synonyms>