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Pronunciation:  uf'ektivnus

WordNet Dictionary
  1. [n]  capacity to produce strong physiological or chemical effects; "the toxin's potency"; "the strength of the drinks"
  2. [n]  power to be effective; the quality of being able to bring about an effect

EFFECTIVENESS is a 13 letter word that starts with E.


 Synonyms: effectivity, effectuality, effectualness, potency, strength
 Antonyms: ineffectiveness, ineffectuality, ineffectualness
 See Also: efficaciousness, efficacy, incisiveness, power, powerfulness, trenchancy



Webster's 1913 Dictionary
\Ef*fect"ive*ness\, n.
The quality of being effective.

Thesaurus Terms
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