32 entries under unproductive topic. ×

6
inoperative(adjective, weak, stupid, inferior, idle)
5
effete(adjective, inutility)
5
nugatory(adjective, failure, inferior, inadequate, limited)
4
unfertile(adjective, empty, sterile, infertile)
2
bare(adjective, clean, dry, dead, bleak)
2
null(adjective, inferior, inadequate, limited, feeble)
2
powerless(adjective, silly, stupid, inferior, insignificant)
2
waste(stupid, idle, empty, bleak, incompetent)
1
dead(adjective, clean, bleak, barren, meaningless)
1
forceless(adjective, inferior, inadequate, limited, feeble)
0
depleted(adjective, empty, sterile, infertile)
0
inactive(adjective, barren, sterile, infertile)
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APASmart Define. (2016). fruitless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/fruitless/thesaurus/synonyms
ChicagoSmart Define. 2016. "fruitless thesaurus" https://smartdefine.org/fruitless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, fruitless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/fruitless/thesaurus/synonyms>.
MLASmart Define. "fruitless thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/fruitless/thesaurus/synonyms>