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efficacious

English

  1. 🔊 marked by qualities giving the power to produce an intended effect
    “written propaganda is less efficacious than the habits and prejudices...of the readers”
  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”

Spanish

  1. 🔊 eficaz efficacious

Similar words

effective effectual able active adequate authoritative capable charismatic charming competent consequential effective effectual efficient enchanting equal to estimable functional go important influential magnetic momentous operational