Synonyms|41Antonyms|1|Broader|0Narrower|0Related|0
1
ineligible(adjective, useless, unfit)
1
insufficient(adjective, useless, unfit)
1
inutile(adjective, useless, unfit)
1
invalid(adjective, useless, unfit)
1
kaput(adjective, useless, unfit)
1
non-effective(adjective, useless, unfit)
1
non-serviceable(adjective, useless, unfit)
1
noneffective(adjective, useless, unfit)
1
slow(adjective, useless, unfit)
1
unable(adjective, useless, unfit)
1
unapt(adjective, useless, unfit)
1
unfit for(adjective, useless, unfit)
1
unfitted(adjective, useless, unfit)
1
unmarketable(adjective, useless, unfit)
1
unpractical(adjective, useless, unfit)
1
unserviceable(adjective, useless, unfit)
1
unsuitable(adjective, useless, unfit)
1
unsuited(adjective, useless, unfit)
1
untenable(adjective, useless, unfit)
1
unusable(adjective, useless, unfit)
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APASmart Define. (2016). out-of-use thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/out-of-use/thesaurus/synonyms
ChicagoSmart Define. 2016. "out-of-use thesaurus" https://smartdefine.org/out-of-use/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, out-of-use thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/out-of-use/thesaurus/synonyms>.
MLASmart Define. "out-of-use thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/out-of-use/thesaurus/synonyms>