88 entries under inadequate topic. ×

4
incapacitated(adjective, weak, skill, useless)
4
not up to(expression, adjective, idiom, weak, skill)
4
worthless(adjective, inferior, limited, feeble)
3
inefficacious(adjective, skill, inferior, limited)
3
inoperative(adjective, skill, inferior, limited)
3
maladroit(adjective, dull, flat, slow)
3
not equal to(expression, adjective, idiom, weak, skill)
3
poor(adjective, weak, unfit, unqualified)
3
unavailing(adjective, weak, inferior, limited)
3
unskillful(adjective, weak, awkward, useless)
3
unsuited(adjective, dull, weak, flat, slow)
2
awkward(adjective, dull, flat, slow)
2
bungling(adjective, awkward, unqualified, inept)
2
feeble(adjective, weak, inferior, limited)
2
fruitless(adjective, weak, inferior, limited)
2
inexperienced(adjective, dull, weak, flat, slow)
2
inferior(limited, feeble, useless, vain)
2
unadapted(useless, inept, unskilled, unskillful)
2
unequipped(adjective, weak, useless, unfit)
2
unhandy(dull, flat, slow, inept)
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APASmart Define. (2016). unable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unable thesaurus" https://smartdefine.org/unable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unable/thesaurus/synonyms>.
MLASmart Define. "unable thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/unable/thesaurus/synonyms>