45 entries under feeble topic. ×

1
feckless(inadequate, limited, useless, vain)
1
forceless(adjective, weak, inferior, inadequate, limited)
1
incompetent(adjective, weak, inferior, inadequate, limited)
1
indecisive(inadequate, limited, useless, vain)
1
inefficient(inadequate, limited, useless, vain)
1
inept(adjective, weak, inferior, inadequate, limited)
1
inferior(inadequate, limited, useless, vain)
1
innocuous(inadequate, limited, useless, vain)
1
lame(inadequate, limited, useless, vain)
1
limited(slight, inadequate, useless, vain)
1
neutralized(inadequate, limited, useless, vain)
1
nugatory(adjective, inferior, inadequate, limited)
1
null(adjective, inferior, inadequate, limited)
1
null and void(expression, adjective, idiom, inferior, inadequate)
1
paltry(slight, small, miserable, inadequate, limited)
1
powerless(adjective, weak, inferior, inadequate, limited)
1
spineless(inadequate, limited, useless, vain)
1
unable(adjective, weak, inferior, inadequate, limited)
1
unavailable(inadequate, limited, product, useless)
1
withered(inadequate, limited, useless, vain)
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APASmart Define. (2015). unfruitful thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unfruitful/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfruitful thesaurus" https://smartdefine.org/unfruitful/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unfruitful thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unfruitful/thesaurus/synonyms>.
MLASmart Define. "unfruitful thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unfruitful/thesaurus/synonyms>