91 entries under inadequate topic. ×

26
infertile(adjective, slight, poor, thin, small)
25
barren(adjective, weak, slight, poor, thin)
24
unproductive(adjective, weak, slight, thin, small)
21
fruitless(adjective, inferior, limited, product)
13
impotent(adjective, weak, inferior, limited)
12
useless(adjective, inferior, limited, feeble)
11
unprofitable(adjective, feeble, useless, bleak)
11
unsuccessful(adjective, inferior, limited, feeble)
9
ineffective(adjective, weak, inferior, product)
8
vain(adjective, inferior, limited, feeble)
7
abortive(adjective, limited, product, feeble)
7
idle(adjective, inferior, dry, limited)
7
ineffectual(adjective, weak, limited, feeble)
7
worthless(adjective, poor, small, insignificant)
5
bootless(adjective, limited, feeble, useless)
5
unavailing(adjective, inferior, dry, idle)
4
bare(adjective, slight, thin, small, spare)
4
futile(adjective, feeble, useless, bleak)
4
inefficacious(adjective, feeble, useless, vain)
4
inoperative(adjective, inferior, limited, feeble)
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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>