IPA: /ˈtʃaɪldlaɪk/
KK: /ˈtʃaɪldˌlaɪk/
Having qualities that are typical of a child, such as innocence and trustfulness.
Her childlike wonder at the world made everyone smile.
Childlike → It is formed from "child" (from Old English "cild", meaning a young human being) and "-like" (meaning resembling or characteristic of). The word "childlike" describes someone who possesses the qualities or characteristics of a child, such as innocence or simplicity.
Think of a 'child' who has a certain 'characteristic' ('-like') — that's why 'childlike' means resembling a child.