Avoid the passive voice to make a sentence lively. EG, Joe plays Baseball vs Joe is a baseball player.
I know how to spell the word 'Liveliness'.
The professor's liveliness in giving his lectures demonstrated his enthusiasm and alacity for science.
lifeful
She had a sprightful personality that brightened everyone's day.
Energetic or liveliness.
Marked by speed, liveliness, and vigour
Hyperactivity. (also energy, activity, liveliness)
vivacious
Feisty means to be full of liveliness and aggressiveness.
The word is elan.
lacklustre is a state of missing quality,if a person or a thing has no brightness or liveliness.
video camera or eyes