larkiness

/ˈlɑrkinɪs/
noun
  1. The quality or state of being playful, mischievous, or carefree.
    • The children's larkiness was contagious, soon the whole classroom was giggling.
    • The puppy's larkiness faded as it grew older and became more calm.
    • His larkiness made him popular at parties, but sometimes he didn't know when to stop.
Antonyms
What does "larkiness" mean? | whatsthatwordmean | whatsthatwordmean