IPA: /kɑːrˈtuːnlaɪk/
KK: /kɑrˈtunˌlaɪk/
Having a style or appearance that is similar to that of a cartoon, often exaggerated or simplified.
The characters in the movie were very cartoonlike, with big eyes and funny expressions.
Cartoonlike is formed from "cartoon" (from French *caricature*, meaning a drawing or representation) and "-like" (meaning resembling or similar to). The word "cartoonlike" describes something that resembles or has the characteristics of a cartoon.
Think of a 'cartoon' as a drawing and '-like' meaning similar to — so cartoonlike means something that looks like a cartoon.