69 entries under idle topic. ×

13
dysfunctional(feature, characteristic, state, useless, weak)
11
ineffectual(adjective, weak, stupid, inadequate)
10
ineffective(adjective, weak, stupid, useless)
7
dormant(adjective, calm, dull, gentle, still)
7
unworkable(adjective, weak, stupid, incompetent)
6
fruitless(adjective, weak, stupid, inferior)
6
unavailing(adjective, weak, stupid, inferior)
4
out of commission(expression, adjective, idiom, dull, weak)
4
unproductive(adjective, weak, stupid, inadequate)
3
abeyant(adjective, dull, sluggish, lazy)
3
abortive(weak, stupid, inferior, inadequate)
3
incompetent(weak, skill, stupid, inadequate)
3
inept(weak, stupid, inadequate, feeble)
3
quiescent(adjective, calm, dull, gentle, cold)
3
unoccupied(adjective, dull, sluggish, lazy)
3
valueless(adjective, weak, stupid, useless)
2
asleep(adjective, calm, dull, gentle, still)
2
counterproductive(weak, stupid, useless, incompetent)
2
down(adjective, dull, sluggish, lazy)
2
feckless(weak, stupid, inferior, inadequate)
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APASmart Define. (2016). inoperative thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/inoperative/thesaurus/synonyms
ChicagoSmart Define. 2016. "inoperative thesaurus" https://smartdefine.org/inoperative/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, inoperative thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/inoperative/thesaurus/synonyms>.
MLASmart Define. "inoperative thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/inoperative/thesaurus/synonyms>