Adjective
- 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”
- Antonyms
- inefficacious
- Similar to
- effective
- See also
- effective
- effectual
- efficacious
- Attributes
- efficacy
- efficaciousness
- Related
- efficacy
- efficaciousness
- efficacy
- efficaciousness
- Antonyms
- 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”
- Synonyms
- effective
- effectual
- Antonyms
- ineffective
- uneffective
- ineffectual
- Similar to
- hard-hitting
- trenchant
- impelling
- impressive
- telling
- rough-and-ready
- See also
- efficacious
- efficient
- potent
- strong
- stiff
- powerful
- useful
- utile
- Attributes
- effectiveness
- effectivity
- effectualness
- effectuality
- Related
- efficacy
- efficaciousness
- efficacy
- efficaciousness
- effectiveness
- effectivity
- effectualness
- effectuality
- effectiveness
- effectivity
- effectualness
- effectuality
- effect
- effectuate
- set up
- effectiveness
- effectivity
- effectualness
- effectuality
- effectiveness
- effectivity
- effectualness
- effectuality
- Synonyms
- efficacious - LookUp adjective
- formal (of something inanimate or abstract) successful in producing a desired or intended result; effective this treatment was efficacious in some cases
Thesaurus
Adjective
- a change in diet may be as efficacious as treatment with steroids
Similar Words: effective successful effectual productive constructive fruitful potent powerful worthwhile helpful of help of assistance beneficial advantageous valuable useful of use
Opposites: inefficacious