[{"Bold_text": "adjective", "List Items": ["immature or inexperienced:a callow youth.Synonyms: jejune , puerile , naive , raw , green , unseasoned Antonyms: grown-up grown-up, experienced , adult , mature", "(of a young bird) featherless; unfledged ."]}, {"Bold_text": "noun", "List Items": ["a recently hatched worker ant."]}]