158 entries under inadequate topic. ×

6
subpar(adjective, weak, poor, miserable, inferior)
6
thin(adjective, close, light, slight, poor)
5
contemptible(adjective, weak, poor, small, common)
5
crude(adjective, weak, poor, plain, miserable)
5
failing(adjective, close, light, poor, short)
5
immature(adjective, poor, plain, bare)
5
inapt(poor, insufficient, scarce)
5
infrequent(adjective, poor, strange, exceptional)
5
little(adjective, close, light, slight, poor)
5
marred(adjective, poor, broken, incomplete)
5
mediocre(adjective, bad, weak, poor, miserable)
5
scrimpy(adjective, close, light, slight, poor)
5
spare(adjective, close, light, slight, poor)
5
trifling(adjective, weak, poor, small, miserable)
5
unacceptable(adjective, bad, rough, poor, awful)
5
unqualified(adjective, weak, poor, low, thin)
4
base(adjective, weak, poor, small, common)
4
found wanting(expression, adjective, idiom, poor)
4
lame(adjective, bad, flat, poor, false)
4
paltry(adjective, weak, slight, poor, small)
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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>