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Definition of Inefficacious
1. Adjective. Lacking the power to produce a desired effect. "Laws that are inefficacious in stopping crime"
Attributes: Efficaciousness, Efficacy
Also: Ineffective, Ineffectual, Uneffective
Antonyms: Efficacious
Derivative terms: Inefficaciousness
Also: Ineffective, Ineffectual, Uneffective
Antonyms: Efficacious
Derivative terms: Inefficaciousness
Definition of Inefficacious
1. a. Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.
Definition of Inefficacious
1. [adj]