Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of efficacious is as below...

Inefficaciously :: Inefficaciously (adv.) without efficacy or effect.

Energetical :: Energetical (a.) Exhibiting energy; operating with force, vigor, and effect; forcible; powerful; efficacious; as, energetic measures; energetic laws..

Potently :: Potently (adv.) With great force or energy; powerfully; efficaciously.

Virtuate :: Virtuate (v. t.) To make efficacious; to give virtue of efficacy.

Antiodontalgic :: Antiodontalgic (a.) Efficacious in curing toothache.

Barberry :: Barberry (n.) A shrub of the genus Berberis, common along roadsides and in neglected fields. B. vulgaris is the species best known; its oblong red berries are made into a preserve or sauce, and have been deemed efficacious in fluxes and fevers. The bark dyes a fine yellow, esp. the bark of the root..

Inefficient :: Inefficient (a.) Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures..

Inefficacious :: Inefficacious (a.) Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.

Potential :: Potential (a.) Being potent; endowed with energy adequate to a result; efficacious; influential.

Valid :: Valid (a.) Having sufficient strength or force; founded in truth; capable of being justified, defended, or supported; not weak or defective; sound; good; efficacious; as, a valid argument; a valid objection..

Forcible :: Forcible (a.) Possessing force; characterized by force, efficiency, or energy; powerful; efficacious; impressive; influential..

Anticatarrhal :: Anticatarrhal (a.) Efficacious against catarrh.

Drastic :: Drastic (a.) Acting rapidly and violently; efficacious; powerful; -- opposed to bland; as, drastic purgatives..

Potent :: Potent (a.) Producing great physical effects; forcible; powerful' efficacious; as, a potent medicine..

Antipyretic :: Antipyretic (a.) Efficacious in preventing or allaying fever.

Supersede :: Supersede (v. t.) To make void, inefficacious, or useless, by superior power, or by coming in the place of; to set aside; to render unnecessary; to suspend; to stay..

Sovereign :: Sovereign (a.) Efficacious in the highest degree; effectual; controlling; as, a sovereign remedy..

Operative :: Operative (a.) Producing the appropriate or designed effect; efficacious; as, an operative dose, rule, or penalty..

Powerful :: Powerful (a.) Full of power; capable of producing great effects of any kind; potent; mighty; efficacious; intense; as, a powerful man or beast; a powerful engine; a powerful argument; a powerful light; a powerful vessel..

Virtuous :: Virtuous (a.) Having power or efficacy; powerfully operative; efficacious; potent.

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