Synonyms|487Antonyms|204|Broader|7Narrower|0Related|1k
3
idiotic
3
illogical(adjective, thoughtless)
3
inattentive(obtuse, unperceptive, unobservant, incogitancy)
3
inconsiderate(adjective, incogitancy)
3
irrational(careless, stupid, absurd, unthinking, obtuse)
3
lacking(clear, free, bare, empty, deficient)
3
lifeless(adjective, dull, quiet, flat, heavy)
3
light
3
muddled
3
nonsensical(adjective, simple, stupid, crazy, insignificant)
3
ridiculous
3
unexisting(adjective, nonexistent)
3
unfilled(adjective, clear, free, bare, empty)
3
unsubstantial(adjective, unsubstantial)
3
vague
2
airheaded(adjective, empty, unintelligent)
2
birdbrained(adjective, empty, unintelligent)
2
confused(careless, stupid, unthinking, obtuse, unperceptive)
2
daffy(adjective, simple, slow, stupid, boring)
2
deadpan
For more, visit Vacuous on Power Thesaurus
11 years ago|15k views|share |citing 
APASmart Define. (2015). vacuous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/vacuous/thesaurus/synonyms
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>