Comatose and Unenergetic

Comatose adjective - Lacking in gaiety, movement, or animation.

Unenergetic and comatose are semantically related In some cases you can use "Unenergetic" instead an adjective "Comatose".

Unenergetic adjective - Deficient in alertness or activity.

Comatose and unenergetic are semantically related in inactive topic. Sometimes you can use "Comatose" instead an adjective "Unenergetic", if it concerns topics such as lazy.