245 entries under adjective topic. ×

10
idle(weak, stupid, inadequate, limited)
9
childless
9
inefficacious(inadequate, feeble, useless, trivial)
9
poor(weak, slight, thin, base)
7
empty(poor, base, inferior, insignificant)
7
dead(dull, bleak, late, barren)
7
fallow(inactive, unproductiveness)
7
infecund(weak, clean, empty, bleak)
7
trivial(poor, base, stupid, inferior)
7
unrewarding(flat, useless, wasted, ineffective)
6
arid(clean, useless, empty, bleak)
6
inadequate(weak, slight, poor, thin)
6
inefficient(weak, slow, inadequate, limited)
6
lean(thin, spare, bare, slim)
6
nonproductive
5
desert(clean, empty, bleak, uncultivated)
5
effete(weak, clean, empty, bleak)
5
hopeless(stupid, idle, useless, trivial)
5
insignificant(poor, base, stupid, inferior)
5
meaningless(poor, base, stupid, inferior)
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APASmart Define. (2016). unproductive thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unproductive/thesaurus/synonyms
ChicagoSmart Define. 2016. "unproductive thesaurus" https://smartdefine.org/unproductive/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unproductive thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unproductive/thesaurus/synonyms>.
MLASmart Define. "unproductive thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/unproductive/thesaurus/synonyms>