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Thesaurus

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Word info Synonyms Antonyms

efficaciousness

Noun

Meaning

capacity or power to produce a desired effect

Source: WordNet

Synonyms

efficiency efficacy functionality

Antonyms

failure inability incompetence futility inaction incapacity
Show all antonyms

Hypernyms

effectiveness effectualness effectivity effectuality

Examples

concern about the safety and efficacy of the vaccine Source: Internet

Close letter words and terms

effeteness efficacious efficaciously efficacity efficacy efficience