190 entries under adjective topic. ×

1
lunatic
1
lusterless(dull, dead, impassive, unresponsive)
1
mad
1
motiveless(insignificant, irregular, useless, empty)
1
needless(insignificant, irregular, useless, empty)
1
non-subsistent
1
nonexistence
1
nutty
1
phantasmal
1
prosaic(dull, quiet, flat, heavy)
1
purportless(insignificant, irregular, useless, empty)
1
random(insignificant, irregular, empty, senseless)
1
simple-minded(simple, slow, stupid, boring)
1
sluggish(dull, quiet, simple, flat)
1
spectral
1
stolid(dull, quiet, simple, flat)
1
tenuous
1
uncalled for(expression, insignificant, irregular, empty)
1
unconcrete
1
undirected(insignificant, irregular, useless, empty)
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APASmart Define. (2015). vacuous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/vacuous/thesaurus/synonyms
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>