Synonyms|215Antonyms|56|Broader|0Narrower|0Related|93

42 entries under ineffectual topic. ×

5
incompetent(adjective, weak, skill, inadequate, feeble)
5
unable(adjective, skill, inferior, inadequate, limited)
5
unprofitable(adjective, inferior, inadequate, feeble, useless)
4
idle(adjective, inferior, inadequate, feeble, useless)
4
lame(adjective, inferior, inadequate, limited, feeble)
4
unfruitful(adjective, inadequate, feeble, useless, vain)
3
feeble(adjective, inadequate, useless, incompetent, vain)
3
forceless(adjective, inferior, inadequate, limited, feeble)
3
indecisive(adjective, inferior, inadequate, limited, feeble)
3
inept(adjective, weak, skill, inadequate, feeble)
3
paltry(adjective, inferior, inadequate, useless, trivial)
2
inferior(adjective, inadequate, limited, feeble, useless)
2
innocuous(adjective, inferior, inadequate, limited, feeble)
2
limited(adjective, inferior, inadequate, feeble, useless)
2
void(adjective, inferior, inadequate, useless, trivial)
1
anticlimactic(adjective, inferior, inadequate, limited, feeble)
1
defeasible(adjective, inferior, inadequate, limited, feeble)
1
neutralized(adjective, inferior, inadequate, limited, feeble)
1
null and void(expression, adjective, idiom, impotence)
1
spineless(adjective, inferior, inadequate, limited, feeble)
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APASmart Define. (2016). inefficacious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/inefficacious/thesaurus/synonyms
ChicagoSmart Define. 2016. "inefficacious thesaurus" https://smartdefine.org/inefficacious/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, inefficacious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/inefficacious/thesaurus/synonyms>.
MLASmart Define. "inefficacious thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/inefficacious/thesaurus/synonyms>