Definition of "Lively" :

adjective: full of spirit; full of life

"This whole lively world."

adjective: filled with events or activity

"A lively period in history."

adjective: full of life and energy

"A lively discussion."

adjective: elastic; rebounds readily

"A lively tennis ball."

adjective: quick and energetic

"A lively gait."

adjective: full of zest or vigor