73 entries under stupid topic. ×

4
unreasoning(adjective, careless, empty, unthinking)
3
brainless(adjective, dull, simple, slow)
3
daft(adjective, simple, slow, silly)
3
dense(adjective, dull, simple, slow)
3
drained(adjective, clear, free, empty)
3
irrational(careless, absurd, unthinking, obtuse)
3
nonsensical(adjective, simple, crazy, insignificant)
2
confused(careless, unthinking, obtuse, unperceptive)
2
daffy(adjective, simple, slow, boring)
2
dim-witted(adjective, simple, slow, boring)
2
doltish(adjective, simple, slow, careless, foolish)
2
half-baked(adjective, simple, slow, boring)
2
ignorant(adjective, simple, slow, foolish)
2
loony(adjective, careless, unthinking, obtuse)
2
moronic(adjective, dull, simple, slow)
2
obtuse(adjective, simple, slow, careless, foolish)
2
pointless(adjective, simple, silly, crazy)
2
slow(adjective, dull, quiet, simple, flat)
2
thick(adjective, simple, slow, sluggish)
2
witless(adjective, dull, simple, slow, careless)
11 years ago|15k views|share |citing 
APASmart Define. (2015). vacuous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/vacuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "vacuous thesaurus" https://smartdefine.org/vacuous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, vacuous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/vacuous/thesaurus/synonyms>.
MLASmart Define. "vacuous thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/vacuous/thesaurus/synonyms>