People who are unruly and reckless in youth may nevertheless turn out to be responsible adults.

Having the qualities or likeness of a kitten. / Playful, sometimes with overtones of female sexuality.

In a kittenish manner.

Resembling or characteristic of a kitten.

The state or condition of being kittenish.

The state or time of being a kitten.

Without kittens.

The game of softball.

plural of kittenishness

Resembling or characteristic of a kitten.