125 entries under weak topic. ×

4
flabby(adjective, poor, thin, delicate)
4
irresponsible(adjective, careless, feeble)
4
poor(adjective, dull, light, soft)
4
puny(adjective, mean, thin, delicate)
4
wan(adjective, dull, light, soft)
3
good-for-nothing(adjective, poor, base, careless)
3
insubstantial(adjective, dull, light, soft)
3
mediocre(adjective, poor, low, base)
3
wishy-washy(adjective, dull, light, soft)
2
careless(adjective, feeble, incompetent, wasteful)
2
etiolated(adjective, thin, delicate, shaky)
2
exhausted(adjective, thin, delicate, useless)
2
faint-hearted(adjective, soft, uncertain, unstable)
2
frail(adjective, thin, delicate, shaky)
2
indecisive(adjective, thin, delicate, uncertain)
2
infecund(adjective, inadequate, incompetent, inept)
2
low(adjective, mean, thin, delicate)
2
of no use(expression, idiom, stupid, idle)
2
thin(adjective, dull, light, soft)
2
unconvincing(adjective, poor, thin, delicate)
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APASmart Define. (2016). ineffectual thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ineffectual/thesaurus/synonyms
ChicagoSmart Define. 2016. "ineffectual thesaurus" https://smartdefine.org/ineffectual/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, ineffectual thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ineffectual/thesaurus/synonyms>.
MLASmart Define. "ineffectual thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/ineffectual/thesaurus/synonyms>