The DICT Development Group
3 definitions found
From The Collaborative International Dictionary of English v.0.48 :
Efficacious \Ef`fi*ca"cious\, a. [L. eficax, -acis, fr.
efficere. See Effect, n.]
Possessing the quality of being effective; productive of, or
powerful to produce, the effect intended; as, an efficacious
Syn: See Effectual. -- Ef`fi*ca"cious*ly, adv.
From WordNet (r) 3.0 (2006) :
adj 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"-Aldous
Huxley; "the medicine is efficacious in stopping a cough"
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,
efficacious] [ant: ineffective, ineffectual,
From Moby Thesaurus II by Grady Ward, 1.0 :
44 Moby Thesaurus words for "efficacious":
able, active, adequate, authoritative, capable, charismatic,
charming, competent, consequential, effective, effectual,
efficient, enchanting, equal to, estimable, functional, go,
important, influential, magnetic, momentous, operational,
operative, personable, persuasive, potent, powerful, practical,
prestigious, productive, proficient, puissant, reputable,
serviceable, strong, suasive, substantial, successful, telling,
up to, useful, virtuous, weighty, winning
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