Synonyms of effectiveness in English:

effectiveness

noun

  • pupils' progress is a far better measure of a school's effectiveness
    success, successfulness, efficacy, productiveness, fruitfulness, potency, power;
    benefit, advantage, value, virtue, use, usefulness
    [Antonyms] ineffectiveness
  • Definition of effectiveness in:

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    Word of the day noisome
    Pronunciation: ˈnoisəm
    adjective
    having an extremely offensive smell