/ˌbeɪbɪʃnɪs/ BAY-bi-shnis

Definitions

1. noun

The quality or state of being immature, childish, or overly infantile in behavior or attitude.

“The author’s portrayal of the spoiled prince as displaying a lack of babyishness in his actions was refreshing.”

2. noun

The quality of being excessively concerned with or indulgent of infants or very young children.

“Her babyishness towards her toddler was endearing, but also sometimes annoying to her husband.”