1
prolific(adjective, exuberance)
1
rewarding(adjective, success)
1
striking(adjective, effect, success, productivity)
1
substantively(adverb, effect, success, productivity)
1
successful(adjective, success)
1
swarming(adjective, exuberance)
1
teeming(adjective, exuberance)
1
thriving(adjective, exuberance)
1
ultraefficient(adjective, effect, success, productivity)
1
useful(adjective, use, success)
1
usefully(adverb, effect, success, productivity)
1
valuable(adjective, success)
1
well spent(adjective, success)
1
with dispatch(adverb, effect, success, productivity)
1
with immediate effect(expression, effect, success, productivity)
1
worthwhile(adjective, success)
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APASmart Define. (2016). in vain thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/in_vain/thesaurus/antonyms
ChicagoSmart Define. 2016. "in vain thesaurus" https://smartdefine.org/in_vain/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2016, in vain thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/in_vain/thesaurus/antonyms>.
MLASmart Define. "in vain thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/in_vain/thesaurus/antonyms>