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English dictionary
Hint: Asterisk (*) is a wildcard. Asterisk substitutes zero or more characters.
English
noun
:
inefficaciousness
1.
inefficaciousness
(attribute)
a lack of efficacy
Synonyms
inefficacy
Broader (hypernym)
ineffectiveness
,
ineffectuality
,
ineffectualness
Antonyms
efficaciousness
,
efficacy
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