[{"word":"impromptu","phonetic":"/ɪmˈpɹɒmptju/","phonetics":[{"text":"/ɪmˈpɹɒmptju/","audio":""},{"text":"/ɪmˈpɹɑmpt(j)u/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A short musical composition for an informal occasion often with the character of improvisation and usually to be played solo.","synonyms":[],"antonyms":[]},{"definition":"(by extension) Any composition, musical or otherwise, that is created on the spot without preparation.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"adjective","definitions":[{"definition":"Improvised; without prior preparation, planning or rehearsal.","synonyms":["extemporaneous","unplanned"],"antonyms":[],"example":"The party began with an impromptu rendition of 'Happy Birthday'."}],"synonyms":["extemporaneous","unplanned"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/impromptu"]}]