158 entries under weak topic. ×

1
aquiver(unstable, unsettled, unsteady, trembling)
1
ashake(unstable, unsettled, unsteady, trembling)
1
chiffon(slight, thin, feeble, tacky)
1
cut-rate(slight, thin, feeble, tacky)
1
diaphanous(slight, thin, feeble, tacky)
1
diminutive(feeble, frail, tiny, measly)
1
faltering(adjective, delicate, unstable, ill)
1
fanciful(adjective, light, wrong, slight)
1
fishy(adjective, wrong, fake, delicate)
1
flaccid(adjective, uncertain, feeble, hesitant)
1
fluctuant(unstable, unsettled, risky, dangerous)
1
fly-by-night(adjective, light, slight, thin)
1
gauzy(slight, thin, feeble, tacky)
1
gossamer(slight, thin, feeble, tacky)
1
half-pint(feeble, frail, tiny, measly)
1
house of cards(expression, slight, thin, feeble)
1
idle(light, slight, imaginary, flimsy)
1
insignificant(adjective, poor, small, silly)
1
irresolute(adjective, delicate, uncertain, ill)
1
jellylike(unstable, unsettled, unsteady, trembling)
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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>