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View synonyms for

effectiveness

[ ih-fek-tiv-nis, ee-fek ]

noun

  1. the quality of producing an intended or desired result:

    For maximum effectiveness of your weight loss plan, you need to combine exercise with a healthy diet.

  2. the quality of producing a deep or vivid impression:

    We were struck by the evident appeal and effectiveness of these short, dramatic, upbeat video stories.

  3. a measure of the success of a vaccine or other pharmaceutical when used in the real world, as opposed to the controlled environment of a clinical trial. Compare efficacy ( def 2 ).


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Other Word Forms

  • ܲ··ڱ·پ·Ա noun
  • ···ڱ·پ·Ա noun
  • ܲ··ڱ·پ·Ա noun
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Word History and Origins

Origin of effectiveness1

First recorded in 1600–10; effective ( def ) + -ness ( def )
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Example Sentences

Examples have not been reviewed.

Another significant finance minister told me of his global counterparts that "no one was crawling to the Americans" given the unbeatable effectiveness of the US having to negotiate with its own bond market.

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The Dodgers would welcome a return to even an approximation of that effectiveness.

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"The haste ends up sacrificing quality and effectiveness, which actually worsens the public's perception of this programme."

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Supporters argued that the body's outsider status - and somewhat vague mandate - would increase its effectiveness.

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We at the Alliance for Aging Research appreciate the ACIP’s continued commitment to COVID-19 vaccine evaluation, particularly considering recent effectiveness data indicating vaccine protection comparable to flu vaccines among high-risk groups.

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effectivelyeffective resistance