3
crumbling(adjective, corrupt, disgusting, stale, decayed)
3
deceitful(adjective, wrong, fake, false, counterfeit)
3
detrimental(adjective, bad, offensive, foul, unhealthy)
3
dicey(adjective, delicate, uncertain, sensitive, rugged)
3
dotty(adjective, crazy, sick, insane, irrational)
3
factitious(adjective, fake, deception, counterfeit, sham)
3
feigned(adjective, fake, deception, counterfeit, sham)
3
forged(adjective, fake, counterfeit, sham, phony)
3
hairy(adjective, delicate, uncertain, sensitive, unstable)
3
halting(adjective, weak, disease, delicate, ill)
3
heretical
3
heterodox
3
hollow(adjective, wrong, fake, flat, false)
3
iffy(adjective, delicate, uncertain, sensitive, risky)
3
imaginary(adjective, light, weak, wrong, slight)
3
immoral
3
inconsequential(weak, feeble, reasoning, tiny)
3
inconsistent(adjective, false, careless, silly, loose)
3
indefensible(adjective, defended, verbal attack)
3
lacking(adjective, poor, small, insignificant, unimportant)
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APASmart Define. (2015). unsound thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unsound/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsound thesaurus" https://smartdefine.org/unsound/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unsound thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unsound/thesaurus/synonyms>.
MLASmart Define. "unsound thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/unsound/thesaurus/synonyms>