Skip to definition.
Get the FREE one-click dictionary software for Windows.
NEW iPhone Audio English dictionary


Noun: inefficacy  in'e-fu-ku-see
  1. A lack of efficacy
    - inefficaciousness

Derived forms: inefficacies

Type of: effeteness, ineffectiveness, ineffectuality, ineffectualness

Antonym: efficacy

Nearest

ineffective
ineffectively
ineffectiveness
ineffectual
ineffectuality
ineffectually
ineffectualness
inefficacious
inefficaciously
inefficaciousness
inefficacy
inefficiency
inefficient
inefficiently
inelaborate
inelastic
inelasticity
inelegance
inelegant
inelegantly
ineligibility