INEFFICACY

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A lack of efficacy

Synonyms:

inefficaciousness; inefficacy

Classified under:

Nouns denoting attributes of people and objects

Hypernyms ("inefficacy" is a kind of...):

ineffectiveness; ineffectuality; ineffectualness (lacking the power to be effective)

Antonym:

efficacy (capacity or power to produce a desired effect)

Credits