122 entries under frail topic. ×

27
faulty(adjective, bad, wrong, fake, poor)
24
weak(adjective, strong, light, slight, poor)
23
invalid(adjective, bad, weak, correct, wrong)
23
unstable(adjective, characteristic, quality, finance, banking)
21
infirm(adjective, strong, light, weak, slight)
21
unhealthy(adjective, weak, severe, disease, poor)
20
false(adjective, bad, light, weak, correct)
20
unreliable(adjective, dangerous, characteristic, quality, finance)
19
fallacious(adjective, bad, correct, wrong, fake)
18
illogical(adjective, correct, wrong, false, silly)
18
shaky(adjective, weak, slight, thin, delicate)
16
erroneous(adjective, bad, correct, wrong, fake)
16
feeble(adjective, strong, light, weak, slight)
16
fragile(adjective, strong, light, weak, slight)
16
ill(adjective, weak, delicate, sick, feeble)
14
mad(adjective, wrong, false, silly, foolish)
14
unsafe(adjective, characteristic, quality, finance, dangerous)
13
incorrect(adjective, bad, correct, wrong, fake)
13
insubstantial(adjective, strong, light, weak, slight)
13
unsteady(adjective, weak, uncertain, unstable, ill)
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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>