What are the opposite words for energetic?

Antonyms for the word "energetic" include lethargic, sluggish, slow, lazy, inactive, dull, and unenthusiastic. Lethargic signifies a complete lack of energy and a general feeling of fatigue. Sluggish implies a slow and inactive state, lacking strength or motivation. Slow denotes a sluggishness and lack of speed in movement or action. Lazy describes a deliberate avoidance of physical or mental exertion. Inactive denotes a state of inaction or a lack of movement or activity. Dull suggests a lack of interest, enthusiasm, or excitement. Unenthusiastic implies a lack of interest or enthusiasm in undertaking a particular task or activity.

Antonym of the day

stops in one's tracks
bore, disenchant, disgust.