Efficacy Thesaurus / Synonyms / page 4

- Definitions|2
- Thesaurus|630
- Abbreviations|0

Synonyms|428 Antonyms|78|Broader|9 Narrower|13 Related|102

65 entries under efficiency topic. ×

1	vitality(noun, drive, power, strength, energy)
1	worth(noun, practicality, effectiveness, utility)
1	zeal(noun, activity, go, drive, power)
1	zest(noun, power, strength, spirit, vigor)
0	helpfulness(use, success, worth, practicality, usefulness)

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APA	Smart Define. (2015). efficacy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/efficacy/thesaurus/synonyms
Chicago	Smart Define. 2015. "efficacy thesaurus" https://smartdefine.org/efficacy/thesaurus/synonyms (accessed September 21, 2026).
Harvard	Smart Define 2015, efficacy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/efficacy/thesaurus/synonyms>.
MLA	Smart Define. "efficacy thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/efficacy/thesaurus/synonyms>

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ability competence driveefficiencyenergy force get-up-and-go helpfulness intensity liveliness might noun oomph power practicality quickness strength usefulness vigor vitality