liveliness

Concise Oxford English Dictionary © 2008 Oxford University Press:
lively/ˈlʌɪvli/

▶adjective (livelier, liveliest)

• 1 full of life, energy, or activity.

  ■ full of interest or excitement.

• 2 (of a boat) rising lightly to the waves.

– phrases
look lively informal move more briskly.

– derivatives
livelily adverb,
liveliness noun.

– origin OE līflic ‘living’ (see life, -ly1).