Definition of Diligent: Diligent (adjective): Showing steady, earnest, and energetic effort in doing something; characterized by care and perseverance in carrying out tasks. Synonyms: hardworking, industrious, conscientious, meticulous Antonyms: lazy, negligent, careless, indolent Memory Tip: Think of “diligent” as someone who is “diligently” working hard and paying attention to details to ensure tasks are completed…