97 entries under inadequate topic. ×

4
inoperative(adjective, weak, stupid, idle)
3
inept(adjective, weak, stupid, inferior, idle)
3
inferior(adjective, poor, base, insignificant)
3
meager(adjective, weak, slight, poor, thin)
2
deficient(slight, poor, limited, trivial)
2
nugatory(adjective, poor, base, inferior, insignificant)
2
paltry(adjective, slight, poor, base, small)
2
powerless(adjective, weak, silly, stupid, inferior)
2
scant(adjective, slight, poor, limited)
2
scanty(adjective, weak, slight, poor, thin)
2
sparse(adjective, weak, slight, poor, thin)
2
unavailable(stupid, idle, feeble, useless)
2
weak(adjective, slight, poor, small, stupid)
1
anticlimactic(limited, feeble, useless, vain)
1
defeasible(limited, feeble, useless, vain)
1
feckless(weak, stupid, idle, feeble)
1
feeble(adjective, weak, poor, inferior, short)
1
forceless(adjective, weak, inferior, limited)
1
inappreciable(weak, slight, poor, small, miserable)
1
incapable(adjective, weak, poor, low, short)
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APASmart Define. (2016). unproductive thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unproductive/thesaurus/synonyms
ChicagoSmart Define. 2016. "unproductive thesaurus" https://smartdefine.org/unproductive/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unproductive thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unproductive/thesaurus/synonyms>.
MLASmart Define. "unproductive thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unproductive/thesaurus/synonyms>