Synonyms|487Antonyms|204|Broader|7Narrower|0Related|1k

190 entries under adjective topic. ×

2
airheaded(empty, unintelligent)
2
birdbrained(empty, unintelligent)
2
daffy(simple, slow, stupid, boring)
2
dim-witted(simple, slow, stupid, boring)
2
doltish(simple, slow, careless, foolish)
2
dreary(harsh, bare, bleak, monotonous)
2
false
2
half-baked(simple, slow, stupid, boring)
2
ignorant(simple, slow, foolish, stupid)
2
laughable
2
loony(careless, stupid, unthinking, obtuse)
2
minus(empty, unintelligent)
2
moronic(dull, simple, slow, stupid)
2
obtuse(simple, slow, careless, foolish)
2
pointless(simple, silly, stupid, crazy)
2
poker-faced(dull, dead, impassive, unresponsive)
2
preposterous
2
slow(dull, quiet, simple, flat)
2
thick(simple, slow, stupid, sluggish)
2
unexpressive(dull, indifferent, dead, blank)
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ChicagoSmart Define. 2015. "vacuous thesaurus" https://smartdefine.org/vacuous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, vacuous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/vacuous/thesaurus/synonyms>.
MLASmart Define. "vacuous thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/vacuous/thesaurus/synonyms>