Efficacious Synonyms and Antonyms

ĕf'ĭ-kā'shəs

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Synonyms for Efficacious

effective
Producing a strong impression or response; striking:
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effectual
Producing or sufficient to produce a desired effect.
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efficient
Producing a desired effect, product, etc. with a minimum of effort, expense, or waste; working well
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forcible
Able to be forced.
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potent
Effective or powerful in action, as a drug or drink
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powerful
The definition of powerful is having a lot of strength, authority or force.
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useful
The definition of useful is helpful or beneficial.
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vigorous
Forceful; effective:
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productive
Producing or capable of producing crops, goods, or services, especially in abundance:
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capable
Having ability; able to do things well; skilled; competent
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active
Erupting or liable to erupt; not dormant:
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prevalent
Widespread or preferred.
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valid
Related to the current topic, or presented within context, relevant.
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virtuous
(Archaic) Having potency; efficacious
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Antonyms for Efficacious

inefficacious
Not capable of producing a desired effect or result; ineffective.
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inefficient
Not producing the desired effect with a minimum use of energy, time, etc.; ineffective
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unproductive
(Economics) Adding nothing to exchangeable value.
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useless
Having no purpose or reason; pointless; to no avail:
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unsuccessful
Having an unfavorable outcome:
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incapable
Not capable (of doing something); unable.
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Words Related to Efficacious

emetogenic
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thrive
Producing or able to produce a desired effect
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non-addictive
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potentized
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Find another word for efficacious. In this page you can discover 25 synonyms, antonyms, idiomatic expressions, and related words for efficacious, like: effective, effectual, efficient, forcible, potent, powerful, useful, vigorous, emetogenic, productive and capable.
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Efficacious Sentence Examples

  • Of the numerous remedies proposed the most efficacious is perhaps sodium amalgam.

  • There are twenty-eight other springs of nearly identical composition, many of which are used for bathing, and are efficacious in cases of rheumatism, gout, nervous and female disorders and skin diseases.

  • In cases where diarrhoea is very obstinate and lasts for weeks, sulphuric acid is sometimes more efficacious than alkalis; and in chronic colics it may be necessary to treat the mucous membrane by local application of astringent solutions.

  • Since many of these thermal springs possess great medicinal value, Japan may become one of the worlds favorite health-resorts, There are more than a hundred spas, some hot, some cold, which, being easily accessible and highly efficacious, are largely visited by the Japanese.

  • In amoebic dysentery, warm injections of quinine per rectum have proved very efficacious, are usually well tolerated, and are not attended with any ill effects.

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Words near efficacious in the Thesaurus