Home › Words › W › wondergirlwondergirlwondergirl · noun — A female child prodigy, or (loosely) a talented female of any age.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom wonder + girl.nounA female child prodigy, or (loosely) a talented female of any age.Definitions & examples from Wiktionary (CC BY-SA 3.0).