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Từ điển WordNet v3.1 - WordNet Dictionary
efficacious


adjective
1. marked by qualities giving the power to produce an intended effect (Freq. 1)
- "written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley
- the medicine is efficacious in stopping a cough
Ant:
inefficacious
Similar to:
effective
See Also:
effective, effectual
Derivationally related forms:
efficacy, efficaciousness
Attrubites:
efficacy, efficaciousness
2. producing or capable of producing an intended result or having a striking effect
- "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"-LewisMumford
- effective teaching methods
- effective steps toward peace
- made an effective entrance
- his complaint proved to be effectual in bringing action
- an efficacious law
Syn:
effective, effectual
Ant:
ineffective (for: effective)
Similar to:
hard-hitting, trenchant, impelling, impressive, telling, rough-and-ready
See Also:
efficient, potent, strong, stiff, powerful,
useful, utile
Derivationally related forms:
efficacy, efficaciousness, effectualness (for: effectual), effectuality (for: effectual), effect (for: effective), effectiveness (for: effective), effectivity (for: effective)
Attrubites:
effectiveness, effectivity, effectualness, effectuality

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