122 entries under frail topic. ×

13
unsubstantial(adjective, bad, strong, light, weak)
12
ailing(adjective, weak, delicate, dark, gloomy)
12
delicate(adjective, strong, weak, slight, thin)
12
flimsy(adjective, strong, light, weak, slight)
12
inaccurate(adjective, bad, correct, wrong, fake)
12
sick(adjective, weak, poor, false, inferior)
12
specious(adjective, bad, correct, wrong, fake)
11
decrepit(adjective, strong, light, weak, slight)
11
sickly(adjective, weak, disease, delicate, dark)
10
insecure(adjective, weak, delicate, uncertain, sensitive)
10
worthless(adjective, characteristic, quality, finance, banking)
9
rickety(adjective, weak, slight, thin, delicate)
9
rotten(adjective, bad, poor, false, uncertain)
9
wobbly(adjective, weak, slight, thin, delicate)
8
insane(adjective, wrong, silly, foolish, stupid)
7
dangerous(adjective, severe, delicate, awful, terrible)
7
uncertain(adjective, delicate, loose, sensitive, feeble)
6
dilapidated(adjective, feeble, shaky, flimsy)
6
puny(adjective, strong, light, weak, slight)
6
undependable(adjective, uncertain, unstable, feeble, unsettled)
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APASmart Define. (2015). unsound thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsound/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsound thesaurus" https://smartdefine.org/unsound/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unsound thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsound/thesaurus/synonyms>.
MLASmart Define. "unsound thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unsound/thesaurus/synonyms>