Futile Thesaurus / Antonyms

22	exercitation
21	productive
19	useful
14	helpfulness
14	fruitful
9	efficient
9	effectual
8	smart
6	effective
5	functional
3	profitable
3	supportive
3	wow
2	achievable
2	expedient
2	potent
2	substantial
2	thankful(adjective, worried, inconsiderate, productive, profitable)
1	efficacious
1	titanic

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APA	Smart Define. (2016). futile thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/futile/thesaurus/antonyms
Chicago	Smart Define. 2016. "futile thesaurus" https://smartdefine.org/futile/thesaurus/antonyms (accessed September 25, 2026).
Harvard	Smart Define 2016, futile thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/futile/thesaurus/antonyms>.
MLA	Smart Define. "futile thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/futile/thesaurus/antonyms>

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