effective, effectual, efficacious
(adjective) 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”
efficacious
(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”
Source: WordNet® 3.1
efficacious (comparative more efficacious, superlative most efficacious)
(formal) Effective; possessing efficacy. [from 1520s]
Synonym: effective
Antonym: inefficacious
Source: Wiktionary
Ef`fi*ca"cious, a. Etym: [L. eficax, -acis, fr. efficere. See Effect, n.]
Definition: Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.
Syn.
– See Effectual.
– Ef`fi*ca"cious*ly, adv.
– Ef`fi*ca"cious*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition
11 February 2025
(noun) shad-like food fish that runs rivers to spawn; often salted or smoked; sometimes placed in genus Pomolobus
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
