160 entries under frail topic. ×

8
spent(adjective, beat, strong, uncertain, miserable)
8
tame(adjective, dull, quiet, gentle, flat)
7
forceless(adjective, strong, uncertain, inferior, inadequate)
7
illogical(adjective, characteristic, silly, ill, unhealthy)
7
indecisive(adjective, thin, delicate, uncertain, nervous)
7
invalid(adjective, mean, bad, poor, delicate)
7
sapless(adjective, dull, thin, delicate, plain)
7
senile(adjective, strong, physical, uncertain, feeble)
7
sick(adjective, dull, mean, bad, light)
6
ill(adjective, mean, bad, thin, delicate)
6
languorous(adjective, dull, strong, easy, slow)
6
prostrate(adjective, strong, uncertain, miserable, feeble)
6
rotten(adjective, mean, bad, strong, poor)
6
spindly(adjective, strong, thin, uncertain, feeble)
5
faltering(adjective, dull, soft, gentle, delicate)
5
insignificant(adjective, soft, gentle, poor, mild)
5
little(noun, adjective, slight, thin, small)
5
meager(adjective, slight, poor, thin, delicate)
5
sluggish(adjective, dull, strong, easy, slow)
5
trifling(adjective, soft, gentle, poor, mild)
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APASmart Define. (2015). weak thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/weak/thesaurus/synonyms
ChicagoSmart Define. 2015. "weak thesaurus" https://smartdefine.org/weak/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, weak thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/weak/thesaurus/synonyms>.
MLASmart Define. "weak thesaurus" 6 December 2015. Web. 25 September 2026. <https://smartdefine.org/weak/thesaurus/synonyms>