3
of no effect(expression, idiom, failure)
3
senseless
3
set(insignificant, trivial, narrow, puny, incomplete)
3
sorry(trivial, ridiculous, worthless, pitiful, laughable)
3
stillborn
3
talentless(adjective, educated, overall, well-informed)
3
thwarted(adjective, unsuccessful, arouse bad feelings)
3
timorous(adjective, soft, uncertain, nervous, unstable)
3
trashy(adjective, mean, poor, base, inferior)
3
unassertive(dull, bashful, colourless)
3
unessential(adjective, poor, base, inferior, insignificant)
3
unfortunate
3
unserviceable(adjective, impractical, hopeless, unusable)
3
unskilled(adjective, skill, inadequate, unfit, inept)
3
white(adjective, dull, light, soft, poor)
3
wishy-washy(adjective, dull, light, weak, soft)
2
addle
2
amateur(inadequate, useless, inept, unable, unskilled)
2
awkward(adjective, inadequate, useless, inept, unable)
2
bungling(adjective, inadequate, useless, incompetent, inept)
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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>