efficacious

Adjective
  1. Marked by qualities giving the power to produce an intended effect (synset 300842395)
    "written propaganda is less efficacious than the habits and prejudices...of the readers"; "the medicine is efficacious in stopping a cough"
    also: effective, effectual, efficacious - producing or capable of producing an intended result or having a striking effect
    tells us about: efficaciousness, efficacy - capacity or power to produce a desired effect
    similar to: effective - works well as a means or remedy
  2. Producing or capable of producing an intended result or having a striking effect (synset 300837737)
    "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"; "effective teaching methods"; "effective steps toward peace"; "made an effective entrance"; "his complaint proved to be effectual in bringing action"; "an efficacious law"
    also:
    • efficacious - marked by qualities giving the power to produce an intended effect
    • efficient - being effective without wasting time or effort or expense
    • potent, stiff, strong - having a strong physiological or chemical effect
    • powerful - having great power or force or potency or effect
    • useful, utile - being of use or service
    tells us about: effectiveness, effectivity, effectuality, effectualness - power to be effective; the quality of being able to bring about an effect
    similar to:
    same as: effective, effectual

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