Wiktionary
kiddish
a. childish
Usage examples of "kiddish".
As he showed me his clean back teeth (plump, kiddish, uninjured), I thought numbly, Christ, what a goodlooking guy.
Coloring the sheets and dividing the room had been great fun at the time, but it seemed stupid and kiddish to her now, and the way her overblown shadow danced on the center sheet was actually scary.