having or showing a great deal of energy or enthusiasm.
The energetic puppy chased its tail around the yard all afternoon.
She gave an energetic performance that thrilled the audience.
✦ From French énergétique, from Ancient Greek ἐνεργητικός (energētikós, ‘active’), from ἐνέργεια (enérgeia, ‘activity’), ἐνεργός (energós, ‘active’), ἐνεργέω (energéō, ‘put into operation’).
