Word

efficacious, adj.
freq. cnt. 1

marked by qualities giving the power to produce an intended effect
<adj.all> freq. cnt.: 1 freq. cnt.: 1

efficacious

sample sentences

"written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley
"the medicine is efficacious in stopping a cough"

lexical pointers

derivationally related form

efficacy efficaciousness

antonym

inefficacious

semantic pointers

also see

effective, effectual, efficacious

attribute

efficacy, efficaciousness

similar to

effective

producing or capable of producing an intended result or having a striking effect
<adj.all> freq. cnt.: 29 freq. cnt.: 29

effective effectual efficacious

sample sentences

"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"

lexical pointers

derivationally related form

effect effectiveness effectivity

antonym

ineffective

lexical pointers

derivationally related form

effectualness effectuality

lexical pointers

derivationally related form

efficacy efficaciousness

semantic pointers

also see

efficacious efficient potent, strong, stiff powerful useful, utile

attribute

effectiveness, effectivity, effectualness, effectuality