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 envenom
    Pronunciation: enˈvenəm
    verb
    put poison on or into; make poisonous