A bit cultural today. This one comes from the French.
1. the part of an artless, innocent, unworldly girl or young woman, especially as represented on the stage.
2. an actress who plays such a part or specializes in playing such parts.
Wordsmith Wednesdays made-up example sentence:
Sibyl, the ingenue of Oscar Wilde’s The Picture of Dorian Gray, is an actress whose talent and personal contentment seem to be inversely proportional.
View this word on Dictionary.com for pronunciation and additional definitions.