Synonyms|618Antonyms|255|Broader|10Narrower|13Related|1.7k
1
omnipotent
1
on
1
operant
1
operating
1
operational
1
practicable
1
proficient
1
realizable
1
robust(adjective, weak, small)
1
skillful(adjective, strong, fit, successful)
1
stiff
1
ultraefficient
1
usable
1
valid
1
vigorous(adjective, dull, weak, feeble)
1
virtuous
1
workable
1
working
0
abounding
0
accomplished
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APASmart Define. (2016). ineffective thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ineffective/thesaurus/antonyms
ChicagoSmart Define. 2016. "ineffective thesaurus" https://smartdefine.org/ineffective/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, ineffective thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ineffective/thesaurus/antonyms>.
MLASmart Define. "ineffective thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/ineffective/thesaurus/antonyms>