English dictionary



Hint: With the Firefox addon you can search this dictionary from the browsers search field.

English noun: inefficacy

1. inefficacy (attribute) a lack of efficacy


Synonymsinefficaciousness


Broader (hypernym)ineffectiveness, ineffectuality, ineffectualness


Antonymsefficaciousness, efficacy









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk