Thespian/ˈθespiən/ Definition 1 of 2Pro Tip 1/3Arts Context Used often when talking about theater and performance arts. She studied with the hope of joining the thespians of Broadway. Pro Tip 2/3Passion Implied Implies a deep commitment to acting, more than just being an actor. He's not just an actor; he's a true thespian at heart. Pro Tip 3/3Formal Usage Considered a formal or literary term; not commonly used in casual speech. In her thespian career, she has performed in many Shakespearean plays.