280 entries under noun topic. ×

15
efficiency(activity, order, go, force)
14
capability(force, power, strength, energy)
11
effect(force, power, strength, energy)
11
efficacy(activity, performance, go, force)
10
force(activity, go, style, drive)
10
power(performance, go, force, style)
9
potency(activity, performance, go, force)
8
strength(activity, go, force, drive)
7
effectuality(effect, affect)
7
productivity(performance, energy, ability, abundance)
6
effectivity
6
effectualness(performance, energy, affect, competence)
6
influence(force, power, strength, energy)
6
punch(go, force, end, style)
5
weight(force, power, strength, influence)
5
validity(force, end, drive, power)
4
fitness(order, benefit, ability, skill)
4
forte(strength, point, asset, specialty)
4
proficiency(power, ability, skill, means)
4
suitability(performance, order, energy, benefit)
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APASmart Define. (2016). effectiveness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/effectiveness/thesaurus/synonyms
ChicagoSmart Define. 2016. "effectiveness thesaurus" https://smartdefine.org/effectiveness/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, effectiveness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/effectiveness/thesaurus/synonyms>.
MLASmart Define. "effectiveness thesaurus" 25 February 2016. Web. 22 September 2026. <https://smartdefine.org/effectiveness/thesaurus/synonyms>