113 entries under feeble topic. ×

57
insufficient(adjective, close, light, weak, soft)
41
poor(adjective, dull, close, mean, bad)
37
deficient(adjective, close, light, weak, slight)
30
unsatisfactory(adjective, bad, weak, rough, poor)
26
incompetent(adjective, weak, ability, poor, thin)
23
imperfect(adjective, weak, rough, poor, awful)
20
weak(adjective, dull, strong, light, soft)
20
bad(adjective, quality, bad, weak, poor)
20
faulty(adjective, bad, weak, rough, poor)
20
ineffective(adjective, dull, light, weak, soft)
19
skimpy(adjective, close, light, weak, slight)
18
impotent(adjective, strong, weak, ability, poor)
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)
15
unsuitable(adjective, bad, weak, poor, proper)
14
sparse(adjective, close, light, weak, soft)
13
lame(adjective, bad, weak, poor, thin)
13
thin(adjective, dull, close, light, weak)
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APASmart Define. (2016). inadequate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inadequate/thesaurus/synonyms
ChicagoSmart Define. 2016. "inadequate thesaurus" https://smartdefine.org/inadequate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, inadequate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inadequate/thesaurus/synonyms>.
MLASmart Define. "inadequate thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/inadequate/thesaurus/synonyms>