efficacious

Từ điển Oxford Learners Wordfinder Dictionary

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

• Từ đồng nghĩa / Synonyms:
  effective, effectual
• Từ trái nghĩa / Antonyms:
  ineffective, uneffective, ineffectual, inefficacious