adj. | 1. exhausted physically or emotionally through too much hard work, stress, or reckless living 2. destroyed on the inside by fire 4. someone who is burnt-out is very tired and has no energy, usually because of too much work or worry 1. exhausted physically or emotionally through too much hard work, stress, or reckless living 2. destroyed on the inside by fire 4. someone who is burnt-out is very tired and has no energy, usually because of too much work or worry |