English dictionary
inefficaciousness
/,/I/n/E/f/@/'k/eI//S//@/sn/E/s/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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a lack of efficacy
Synonyms inefficacySource: WordNet 3.0
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Want of effect, or of power to produce the effect; inefficacy.
Source: webster1913