Lacking worldly experience and understanding, especially:
Marked by or suggesting a lack of normal maturity:
The definition of childish is a person or thing that is silly, immature, like a child or directed at children.
Being in an early period of life or growth; not old
Find another word for kiddish. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for kiddish, like: naive, juvenile, immature, babyish, childish and young.