Immature adjective
Synonyme childish, Innocent juvenile, infantile
Antonymo mature grown up

Read this sentence:

Jadan's immature delight in watching the circus clowns perform made
his mother smile

Which word best replaces the underlined word in the sentence with a more
positive connotation without changing the overall meaning of the sentence?

A innocent
B. juvenile
C. mature
D. childish