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inefficacy JUST WRITTEN FOR YOU

/ɪnɪfɪˈsɒsɪti/ · in.e.fic.a.cy
noun
  1. The condition of being ineffective or lacking in power to produce the desired effect. The company's ineffectiveness in addressing the crisis led to widespread criticism.
noun
  1. A lack of effectiveness or efficiency in a system, process, or organization. The ineffectiveness of the new policy was evident in the decline of customer satisfaction.

Synonyms

ineffectivenessineffectualnessineffectualityineffectualnessineffectualineffectiveineffectual

Antonyms

efficacyeffectivenessefficiency
Did you know? The term 'inefficacy' is often used in scientific and medical contexts to describe the failure of a treatment or intervention to produce the desired outcome.

Related terms

ineffectualineffectiveineffectivenessineffectualnessineffectualityineffectualnessineffectual
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 16, 2026