Childlike
Pronunciation : Child"like
Part of Speech : a.
Definition : Defn: Resembling a child, or that which belongs to children; becoming a child; meek; submissive; dutiful. "Childlike obedience." Hooker.
Note: Childlike, as applied to persons grown up, is commonly in a good sense; as, childlike grace or simplicity; childlike modesty.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder