[{"word":"nightmarish","phonetics":[],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"Resembling a nightmare.","synonyms":[],"antonyms":[]}],"synonyms":["nightmarey"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/nightmarish"]}]