Some words with "child" as the root word are childhood, childish, childcare, and childlike.
someone who exhibits childish childlike young traits
childlike, childish, childhood, children
The word childish could mean many different things. The synonyms for the term childish are as follows: childlike, baby, innocent, adolescent, juvenile, and young.
No. Child is a noun, with the plural children. Adjectives could be "childish" or "childlike."
Adolescent, childlike, childish, inexperienced, puerile, tender...
Immature is a good word to use when describing someone who is childish or silly. You could also use the words infantile, childlike, and juvenile.
Regression
Childlike and childish are two adjectives that can be made from the word child. They have very different meanings.
The suffix "ish" in the word "childish" is used to suggest that something has childlike qualities or characteristics but may not be fully or genuinely childish. It indicates a degree of resemblance or similarity to the main root word.
childlike (positive) childish (negative) chatty changeable chunky choosy
A childish belief in God may be superficial, based on simplistic notions or wishful thinking, and lack depth or critical thinking. In contrast, a childlike belief in God can be characterized by a sense of wonder, innocence, and trust, with openness to mystery and faith that is genuine and authentic.