An energetic person is very active and does not feel at all tired. An energetic activity involves a lot of physical movement and power. Ten year-olds are incredibly energetic. + energetically en·er·geti·cal·ly Gretchen chewed energetically on the gristled steak. having or needing a lot of energy or determination
If you are energetic in what you do, you have a lot of enthusiasm and determination. Blackwell is 59, strong looking and enormously energetic The next government will play an energetic role in seeking multilateral nuclear disarmament. + energetically en·er·geti·cal·ly He had worked energetically all day on his new book
possessing or exerting or displaying energy; "an energetic fund raiser for the college"; "an energetic group of hikers" working hard to promote an enterprise