[{"Bold_text": "verb (used with object)", "List Items": ["to make or cause to become worse; diminish in ability, value, excellence, etc.; weaken or damage:to impair one's health;to impair negotiations.Antonyms: repair"]}, {"Bold_text": "verb (used without object)", "List Items": ["to grow or become worse; lessen."]}, {"Bold_text": "noun", "List Items": ["Archaic.impairment."]}, {"Bold_text": "adjective", "List Items": ["noting any odd number, especially in roulette.Compare pair ."]}]