1. an extremely skillful or brilliant action or achievement

Examples

• The CEO’s decision to acquire the startup was a masterstroke that doubled the company’s value.
• Her masterstroke in the chess match caught her opponent completely off guard.
• The director’s casting choice proved to be a masterstroke that made the film a success.
• The politician’s speech was a masterstroke that won over undecided voters.
• The architect’s design for the bridge was considered a masterstroke of engineering.
• His masterstroke in negotiations secured the best possible deal for his client.