Synonyms|487Antonyms|204|Broader|7Narrower|0Related|1k
2
desert
2
dim-witted(adjective, simple, slow, stupid, boring)
2
doltish(adjective, simple, slow, careless, foolish)
2
dorky
2
dreary(adjective, harsh, bare, bleak, monotonous)
2
false
2
half-baked(adjective, simple, slow, stupid, boring)
2
ignorant(adjective, simple, slow, foolish, stupid)
2
lamebrain
2
laughable
2
loony(adjective, careless, stupid, unthinking, obtuse)
2
minus(adjective, empty, unintelligent)
2
moronic(adjective, dull, simple, slow, stupid)
2
obtuse(adjective, simple, slow, careless, foolish)
2
passive
2
pointless(adjective, simple, silly, stupid, crazy)
2
poker-faced(adjective, dull, dead, impassive, unresponsive)
2
preposterous
2
slow(adjective, dull, quiet, simple, flat)
2
tedious
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ChicagoSmart Define. 2015. "vacuous thesaurus" https://smartdefine.org/vacuous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, vacuous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/vacuous/thesaurus/synonyms>.
MLASmart Define. "vacuous thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/vacuous/thesaurus/synonyms>