70 entries under limited topic. ×

3
weak(adjective, slight, poor, small, miserable)
2
sparse(adjective, slight, thin, small, spare)
1
anticlimactic(inadequate, feeble, useless, vain)
1
defeasible(inadequate, feeble, useless, vain)
1
feckless(inadequate, feeble, useless, vain)
1
feeble(adjective, weak, inferior, inadequate)
1
forceless(adjective, weak, inferior, inadequate)
1
incompetent(adjective, weak, inferior, inadequate)
1
indecisive(inadequate, feeble, useless, vain)
1
inefficient(inadequate, feeble, useless, vain)
1
inept(adjective, weak, inferior, inadequate)
1
inferior(inadequate, feeble, useless, vain)
1
innocuous(inadequate, feeble, useless, vain)
1
lame(inadequate, feeble, useless, vain)
1
neutralized(inadequate, feeble, useless, vain)
1
nugatory(adjective, inferior, inadequate, feeble)
1
null(adjective, inferior, inadequate, feeble)
1
paltry(slight, small, miserable, inadequate)
1
powerless(adjective, weak, inferior, inadequate)
1
slender(adjective, slight, thin, small, spare)
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APASmart Define. (2015). unfruitful thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unfruitful/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfruitful thesaurus" https://smartdefine.org/unfruitful/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unfruitful thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unfruitful/thesaurus/synonyms>.
MLASmart Define. "unfruitful thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/unfruitful/thesaurus/synonyms>