pertness

nouns

inappropriate playfulness
archness, impertinence, perkiness, pertness, sauciness
is derived from
pert
quality of being lively and confident
"there was a pertness about her that attracted him"
pertness
is derived from
pert
is a type of (narrower)
animation and energy in action or expression
"it was a heavy play and the actors tried in vain to give life to it"
life, liveliness, spirit, sprightliness