55 entries under uncertain topic. ×

10
unsubstantial(adjective, strong, light, weak, slight)
10
weakly(adjective, adverb, strong, weak, thin)
10
wobbly(adjective, change, mean, bad, strong)
9
wasted(adjective, weakness, feeble, tired)
7
senile(adjective, physical, feeble, tired)
7
wavering(adjective, weak, delicate, unstable)
7
weakened(adjective, weak, thin, delicate)
6
exhausted(verb, adjective, weak, thin, delicate)
6
indecisive(adjective, weak, thin, delicate)
6
languid(adjective, dull, weak, easy, weakness)
6
rotten(adjective, mean, bad, weak, weakness)
5
anemic(adjective, weak, delicate, ill)
5
effete(adjective, weak, weakness, thin, delicate)
5
limp(adjective, dull, weak, easy, slow)
5
tender(adjective, weak, delicate, feeble)
5
undecided(adjective, weak, doubtful, unsure)
5
undependable(adjective, feeble, shaky, hesitant)
4
hesitant(adjective, weak, feeble, doubtful)
3
rocky(adjective, mean, bad, weak, thin)
3
wimpy(adjective, dull, weak, easy, thin)
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APASmart Define. (2015). infirm thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/infirm/thesaurus/synonyms
ChicagoSmart Define. 2015. "infirm thesaurus" https://smartdefine.org/infirm/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, infirm thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/infirm/thesaurus/synonyms>.
MLASmart Define. "infirm thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/infirm/thesaurus/synonyms>