Table of Contents
Synonyms
Antonyms
1. inefficacy
noun. a lack of efficacy.
Synonyms
- inefficaciousness
- ineffectuality
- ineffectualness
Antonyms
- efficacy
- power
- powerfulness
- incisiveness
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Sentences with inefficacy
1. Noun, singular or mass
In addition to its inefficacy as a fat-loss tool, it's also dangerous to use.