[{"Bold_text": "adjective", "List Items": ["performed merely as a routine duty; hasty and superficial:perfunctory courtesy.Synonyms: uninterested , thoughtless , heedless , negligent Antonyms: diligent , careful", "lacking interest, care, or enthusiasm; indifferent or apathetic:In his lectures he reveals himself to be merely a perfunctory speaker.Synonyms: uninterested , thoughtless , heedless , negligent Antonyms: diligent , careful"]}]