baby face

noun
  1. a face having a bland babyish or childish appearance, especially a plump, small-featured face unmarked by characteristic lines.
  2. a person having such a face.

Origin of baby face

First recorded in 1705–15
Related formsba·by-faced, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018