54 entries under feeble topic. ×

1
unavailable(inadequate, limited, useless, vain)
1
unfruitful(adjective, weak, inferior, inadequate, limited)
1
unproductive(adjective, weak, inferior, inadequate, limited)
1
unprofitable(inferior, inadequate, limited, useless)
1
unsuccessful(weak, inferior, inadequate, limited)
1
vain(weak, inferior, inadequate, limited)
1
void(inferior, inadequate, limited, useless)
1
withered(inferior, inadequate, limited, useless)
0
emasculate(inadequate, limited, useless, vain)
0
no go(expression, inadequate, limited, useless)
0
no way(expression, inadequate, limited, useless)
0
not effective(expression, inadequate, limited, useless)
0
slack-spined(inadequate, limited, useless, vain)
0
vulnerable(adjective, weak, helpless, powerless)
<123>
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APASmart Define. (2016). unable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unable thesaurus" https://smartdefine.org/unable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, unable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unable/thesaurus/synonyms>.
MLASmart Define. "unable thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/unable/thesaurus/synonyms>