lightheartedness

Etymology
From.

Noun

 * 1)  The state of being lighthearted, joyous, cheerful, without a care.
 * 2)  An amusement or item of a pleasant but inconsequential nature.

Synonyms

 * joyousness, cheerfulness, carefreedom, carefreeness, playfulness
 * amusement, pleasantry

Translations

 * Maori: hiwa