[{"word":"thankless","phonetics":[],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"(of a task) not appreciated or rewarded","synonyms":[],"antonyms":[]},{"definition":"(of a person) ungrateful or unappreciative","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["thankful"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/thankless"]}]