In the sense of showing or involving great activity or vitality a skinny, energetic young man Synonyms active • lively • dynamic • zestful • spirited • animated • vital • vibrant • sparkling • bouncy • bubbly • perky • bright and breezy • frisky • sprightly • tireless • indefatigable • enthusiastic • zealous • fiery • passionate • peppy • zippy • sparky • full of get-up-and-go • full of vim and vigour • full of beans • full of...