infant prodigy vs wonder child

infant prodigy and wonder child both are nouns.

Word	Noun	Adjective	Verb	Adverb
infant prodigy	Yes	No	No	No
wonder child	Yes	No	No	No

As nouns, infant prodigy and wonder child are synonyms defined as:

infant prodigy and wonder child: a prodigy whose talents are recognized at an early age

Other synonyms of infant prodigy include child prodigy.

infant prodigy (noun)	wonder child (noun)
a prodigy whose talents are recognized at an early age	a prodigy whose talents are recognized at an early age