Based on age and experience:
* Veteran: This suggests someone with extensive experience, opposite to the naivety of an ingenue.
* Mature: Highlights the contrast to the youthful innocence associated with an ingenue.
* Worldly: Emphasizes experience and knowledge of the world, opposed to the unfamiliarity of an ingenue.
Based on personality:
* Sophisticated: Contrasts the simple, innocent personality of an ingenue.
* Cunning: Highlights a manipulative or scheming personality, opposite to the innocence of an ingenue.
* Worldly-wise: Implies a knowledge of the world and its complexities, opposite to the naivety of an ingenue.
Based on acting style:
* Veteran actor/actress: Indicates experience and maturity in acting, contrasting with the fresh, untested approach of an ingenue.
* Character actress/actor: Focuses on a more experienced performer, often playing roles that are not typically associated with ingenues.
* Dramatic: Emphasizes a more serious and complex acting style, opposite to the lighthearted and often romantic roles of an ingenue.
The best antonym will depend on the specific context in which you are using it. Consider what aspect of "ingenue" you want to emphasize when choosing the most appropriate word.