158 entries under inadequate topic. ×

1
flimsy(light, slight, thin, strange)
1
handicapped(adjective, poor, thin, small)
1
hollow(adjective, poor, thin, small)
1
implausible(adjective, flat, poor, thin, small)
1
improbable(adjective, flat, poor, thin, small)
1
inappreciable(slight, poor, limited, insufficient)
1
incommensurate(poor, insufficient, scarce, unsatisfactory)
1
inconceivable(adjective, light, flat, poor, thin)
1
incredible(adjective, flat, poor, thin, small)
1
insubstantial(slight, poor, limited, trivial)
1
invalid(adjective, poor, false, insufficient)
1
low-grade(adjective, weak, poor, miserable, inferior)
1
not cut out for(adjective, imperfect)
1
not make it(adjective, imperfect)
1
not up to scratch(adjective, imperfect)
1
occasional(adjective, light, thin, strange, exceptional)
1
ordinary(adjective, weak, poor, miserable, inferior)
1
outta gas(adjective, imperfect)
1
raw(adjective, poor, plain, bare)
1
rotten(adjective, bad, weak, poor, miserable)
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APASmart Define. (2015). deficient thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/deficient/thesaurus/synonyms
ChicagoSmart Define. 2015. "deficient thesaurus" https://smartdefine.org/deficient/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, deficient thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/deficient/thesaurus/synonyms>.
MLASmart Define. "deficient thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/deficient/thesaurus/synonyms>