Inflected forms: live·li·er, live·li·est 1. Full of life and energy; vigorous: a lively baby.2. Full of spirit; gay and animated: a lively tune.3. Marked by animated intelligence: a lively discussion.4. Invigorating; refreshing. 5. Effervescent; sparkling. 6. Keen; brisk: gave the kitchen floor a lively sweeping.7. Rebounding readily upon impact; resilient: a lively tennis ball. See synonyms at active.
ADVERB:
With energy or vigor; briskly: Step lively!
ETYMOLOGY:
Middle English lifli, from Old English lflc, from lf, life. See leip- in Appendix I.