18
incomplete(adjective, weak, rough, poor, false)
18
inferior(adjective, feature, characteristic, bad, weak)
18
lacking(adjective, weak, poor, small, miserable)
16
ineffectual(adjective, dull, mean, strong, light)
16
meagre(adjective, poor, small, insignificant, unimportant)
15
unsuitable(adjective, bad, weak, poor, proper)
14
sparse(adjective, close, light, weak, soft)
13
half-assed
13
lame(adjective, bad, weak, poor, thin)
13
small(adjective, mean, light, slight, poor)
13
thin(adjective, dull, close, light, weak)
12
flimsy(adjective, strong, light, thin, useless)
12
incapable(adjective, strong, weak, ability, poor)
12
paltry(adjective, mean, light, weak, moving)
12
unfit(adjective, weak, ability, appropriate, false)
11
low(adjective, mean, weak, poor, thin)
11
miserable(adjective, mean, moving, slight, poor)
11
pathetic(adjective, mean, weak, moving, poor)
11
sorry(adjective, mean, weak, moving, poor)
11
useless(adjective, bad, weak, poor, useless)
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APASmart Define. (2016). inadequate thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/inadequate/thesaurus/synonyms
ChicagoSmart Define. 2016. "inadequate thesaurus" https://smartdefine.org/inadequate/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, inadequate thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/inadequate/thesaurus/synonyms>.
MLASmart Define. "inadequate thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/inadequate/thesaurus/synonyms>