Dead-beat is a slang term that refers to someone who is lazy, unproductive, and unreliable. Antonyms for the word "dead-beat" include hardworking, productive, dependable, responsible, and diligent. These are individuals who consistently provide their best output at work, actively contribute to accomplishing team goals, and take ownership of their duties. They are reliable individuals who do not shy away from challenging tasks and are always willing to lend a helping hand to their colleagues. These antonyms for dead-beat also embody a sense of accountability, taking responsibility for their actions and their impact on their team and organization.