327 entries under efficacy topic. ×

5
basic(noun, adjective, power, strength, active)
5
blinding(noun, adjective, power, strength, active)
5
entire(noun, adjective, power, strength, active)
5
flat(verb, feature, strength, doing, powerful)
5
flush(verb, feature, strength, doing, powerful)
5
grave(noun, verb, adjective, power, strength)
5
plain(verb, adjective, power, strength, doing)
5
ropy(adjective, force, strength, thin, vigorous)
5
stark(adjective, power, strength, powerful, healthy)
5
swift(adjective, feature, force, effect, doing)
5
tense(verb, adjective, feature, strength, powerful)
5
thin(feature, force, effect, doing, active)
4
clean(adjective, feature, force, effect, doing)
4
weak(noun, adjective, power, strength, active)
4
absolute(noun, adjective, power, strength, active)
4
bracing(noun, adjective, power, strength, active)
4
broad(adverb, feature, great, powerful, active)
4
doctrinaire(noun, adjective, power, strength, active)
4
exquisite(adjective, power, strength, intense, passionate)
4
firmness(noun, intensity, muscle)
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APASmart Define. (2016). strong thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/strong/thesaurus/synonyms
ChicagoSmart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, strong thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/strong/thesaurus/synonyms>.
MLASmart Define. "strong thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/strong/thesaurus/synonyms>