Synonyms
Antonyms

1. inefficacy

noun. a lack of efficacy.

Synonyms

  • inefficaciousness
  • ineffectuality
  • ineffectualness

Antonyms

  • efficacy
  • power
  • powerfulness
  • incisiveness

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Example sentences of the word inefficacy


1. Noun, singular or mass
In addition to its inefficacy as a fat-loss tool, it's also dangerous to use.

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