509 entries under adjective topic. ×

8
substandard(weak, rough, poor, nasty)
7
depleted(poor, small, insignificant, unimportant)
7
flawed(poor, deficient, broken, incomplete)
7
inappreciable(light, insignificant, unimportant, useless)
7
inconsiderable(mean, weak, soft, slight)
7
inefficient(weak, thin, delicate, inferior)
7
insignificant(mean, light, weak, soft)
7
insubstantial(dull, light, weak, soft)
7
invalid(bad, poor, false, useless)
7
little(close, light, slight, poor)
7
not enough(expression, idiom, poor, inferior)
7
stingy(poor, small, insignificant, unimportant)
7
trifling(mean, light, weak, soft)
7
unacceptable(bad, rough, poor, nasty)
7
unequal(weak, ability, poor, inferior)
6
awful(rough, poor, sad, unhappy)
6
exiguous(close, light, weak, slight)
6
futile(weak, limited, feeble, useless)
6
hopeless(weak, sad, unhappy, useless)
6
incommensurate(poor, short, incompetent, insufficient)
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APASmart Define. (2016). inadequate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/inadequate/thesaurus/synonyms
ChicagoSmart Define. 2016. "inadequate thesaurus" https://smartdefine.org/inadequate/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, inadequate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/inadequate/thesaurus/synonyms>.
MLASmart Define. "inadequate thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/inadequate/thesaurus/synonyms>