childlike vs wide-eyed

childlike and wide-eyed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
childlike	No	Yes	No	No
wide-eyed	No	Yes	No	No

As adjectives, childlike and wide-eyed are synonyms defined as:

Other synonyms of childlike include dewy-eyed, round-eyed, simple.

childlike (adjective)	wide-eyed (adjective)
exhibiting childlike simplicity and credulity	exhibiting childlike simplicity and credulity
befitting a young child	(used of eyes) fully open or extended