efficaciousness

ef·fi·ca·cious

 (ĕf′ĭ-kā′shəs)

adj.

Producing or capable of producing a desired effect. See Synonyms at effective.

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[From Latin efficāx, efficāc-, from efficere, to effect; see effect.]

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ef′fi·ca′cious·ly adv.

ef′fi·ca′cious·ness n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Noun

1.

efficaciousness - capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine" efficacy effectiveness, effectivity, effectuality, effectualness - power to be effective; the quality of being able to bring about an effect

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

efficaciousness

noun

The power or capacity to produce a desired result:

effect, effectiveness, effectuality, effectualness, efficacy, efficiency, influence, potency.

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.