7
meaningless(adjective, weak, poor, base, careless)
7
unfruitful(adjective, weak, inadequate, limited, feeble)
7
unqualified(adjective, poor, inadequate, useless, incompetent)
6
counterproductive(adjective, poor, base, stupid, inferior)
6
dysfunctional(weak, stupid, idle, useless, incompetent)
6
failed(adjective, unsuccessful, arouse bad feelings)
6
hopeless(adjective, stupid, idle, useless, trivial)
6
impractical(adjective, stupid, idle, useless, trivial)
6
inconsequential(adjective, poor, failure, base, stupid)
6
otiose
6
trifling(adjective, mean, poor, failure, base)
6
trivial(adjective, mean, poor, base, stupid)
6
uneffective
6
unfit(adjective, weak, skill, inadequate, inept)
5
effete(adjective, weak, thin, delicate, shaky)
5
helpless(adjective, strong, weak, ability, thin)
5
irresolute(adjective, weak, soft, uncertain, unstable)
5
lame(adjective, weak, poor, thin, delicate)
5
pale(adjective, dull, light, soft, poor)
5
tame(weak, thin, incompetent, frail, puny)
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APASmart Define. (2016). ineffectual thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ineffectual/thesaurus/synonyms
ChicagoSmart Define. 2016. "ineffectual thesaurus" https://smartdefine.org/ineffectual/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, ineffectual thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ineffectual/thesaurus/synonyms>.
MLASmart Define. "ineffectual thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/ineffectual/thesaurus/synonyms>