49 entries under unproductive topic. ×

4
germ-free(adjective, clean, pure, wholesome, unpolluted)
3
idle(adjective, dry, useless, trivial, insufficient)
3
unprolific(adjective, clean, unproductiveness)
2
exhausted(adjective, poor, useless, trivial, insufficient)
2
gainless(adjective, dry, idle, product, useless)
2
unrewarding(adjective, dry, idle, useless, wasted)
2
without issue(adjective, clean)
1
depleted(adjective, weak, poor, low, short)
0
septic(adjective, clean)
<123>
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APASmart Define. (2016). sterile thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/sterile/thesaurus/synonyms
ChicagoSmart Define. 2016. "sterile thesaurus" https://smartdefine.org/sterile/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, sterile thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/sterile/thesaurus/synonyms>.
MLASmart Define. "sterile thesaurus" 1 March 2016. Web. 30 September 2026. <https://smartdefine.org/sterile/thesaurus/synonyms>