1
exertive(moving, active, effective, running, alive)
1
expeditious
1
familiar with(expression, tough, energetic, effective, adept)
1
favorable(adjective, strong, friendly, happy, useful)
1
flowing(moving, active, effective, running, alive)
1
formidable(prevailing, influential, commanding)
1
fortunate(adjective, strong, friendly, happy, useful)
1
going(adjective, moving, active, effective, running)
1
good at(expression, tough, energetic, effective, adept)
1
good for(expression, tough, energetic, useful, effective)
1
great(strong, powerful, effective, prevailing, influential)
1
handy(tough, energetic, effective, adept, effectual)
1
hard-hitting
1
hasty(moving, active, effective, running, alive)
1
having movement
1
in play(expression, moving, active, effective, running)
1
in process(expression, moving, active, effective, running)
1
instrumental(adjective, strong, important, powerful, significant)
1
just(adjective, good, sound, right, reasonable)
1
legal(good, sound, right, reasonable, rational)
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APASmart Define. (2015). efficacious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/efficacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "efficacious thesaurus" https://smartdefine.org/efficacious/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, efficacious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/efficacious/thesaurus/synonyms>.
MLASmart Define. "efficacious thesaurus" 13 October 2015. Web. 22 September 2026. <https://smartdefine.org/efficacious/thesaurus/synonyms>