1. to remove the strings from a musical instrument or sports equipment
2. to make someone emotionally upset or nervous

Examples

• The guitarist had to unstring his instrument before traveling.
• She decided to unstring her tennis racket for restringing.
• The violin maker carefully unstrung the old instrument.
• The shocking news completely unstrung him.
• The constant pressure began to unstring her nerves.
• Don’t let their criticism unstring you before the performance.