[{"word":"head-case","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A mentally unbalanced, unpredictable person, especially one who displays aggressive behavior.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/head-case","https://en.wiktionary.org/wiki/headcase"]}]