[{"word":"efficacious","phonetic":"/ɛf.ɪ.ˈkeɪ.ʃəs/","phonetics":[{"text":"/ɛf.ɪ.ˈkeɪ.ʃəs/","audio":""}],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"Effective; possessing efficacy.","synonyms":["effective"],"antonyms":["inefficacious"],"example":"This medicine is efficacious."}],"synonyms":["effective"],"antonyms":["inefficacious"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/efficacious"]}]