Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
efficacy | Yes | No | No | No |
inefficacious | No | Yes | No | No |
efficacy (noun) | inefficacious (noun) |
---|---|
capacity or power to produce a desired effect |
efficacy (adjective) | inefficacious (adjective) |
---|---|
lacking the power to produce a desired effect |