Effectivity

//əˈfek.tɪv.ə.t̬i// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The ability or power to be effective. uncountable
  2. 2
    power to be effective; the quality of being able to bring about an effect wordnet
  3. 3
    A measure of the effectiveness of something. countable
  4. 4
    [Technical documentation] An indication of the product, procedure, or timescale for which an item of information is applicable or effective. countable

Synonyms

All synonyms
effectivenesseffectivenesseffectualityeffectualness

Etymology

From effective + -ity.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.