113 entries under feeble topic. ×

6
rotten(adjective, bad, weak, poor, nasty)
6
spineless(adjective, weak, poor, inferior, limited)
6
subpar(adjective, weak, poor, miserable, inferior)
6
unproductive(adjective, weak, slight, poor, thin)
5
crude(adjective, weak, rough, poor, miserable)
5
powerless(adjective, strong, weak, ability, thin)
5
shoddy(adjective, mean, weak, poor, miserable)
5
trivial(adjective, mean, light, weak, soft)
4
below par(expression, adjective, idiom, weak, poor)
4
bootless(adjective, limited, useless, impractical)
4
contemptible(adjective, mean, weak, poor, nasty)
4
fruitless(adjective, weak, limited, useless)
4
limited(adjective, close, mean, light, slight)
4
mean(adjective, bad, weak, poor, nasty)
4
nugatory(adjective, limited, useless, worthless)
4
unavailing(adjective, weak, inferior, short, limited)
4
unfruitful(adjective, weak, slight, poor, thin)
3
frail(adjective, weak, slight, thin, delicate)
3
unconvincing(adjective, weak, poor, thin, delicate)
3
vain(adjective, weak, inferior, short, limited)
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APASmart Define. (2016). inadequate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/inadequate/thesaurus/synonyms
ChicagoSmart Define. 2016. "inadequate thesaurus" https://smartdefine.org/inadequate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, inadequate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/inadequate/thesaurus/synonyms>.
MLASmart Define. "inadequate thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/inadequate/thesaurus/synonyms>