554 entries under adjective topic. ×

6
deranged(foolish, crazy, mad, unstable)
6
dilapidated(feeble, shaky, frail, flimsy)
6
ill-considered(foolish, wise, rash, unwise)
6
impaired(deficient, broken, incomplete, inexact)
6
imprecise(wrong, false, uncertain, incorrect)
6
indisposed
6
loco(slang, crazy, mad, sick)
6
lunatic(foolish, crazy, mad, unstable)
6
mentally ill(expression, idiom, crazy, sick)
6
off(correct, wrong, false, incorrect)
6
puny(strong, light, weak, slight)
6
ramshackle(feeble, shaky, flimsy, dilapidated)
6
undependable(uncertain, unstable, feeble, unsettled)
6
unsatisfactory(bad, poor, small, insignificant)
6
unwise(wrong, careless, silly, foolish)
6
weakly(strong, weak, delicate, uncertain)
5
afflicted
5
amiss(bad, wrong, false, incorrect)
5
apocryphal(wrong, fake, false, counterfeit)
5
brainsick(crazy, sick, insane, sane)
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APASmart Define. (2015). unsound thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unsound/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsound thesaurus" https://smartdefine.org/unsound/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unsound thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unsound/thesaurus/synonyms>.
MLASmart Define. "unsound thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/unsound/thesaurus/synonyms>