1. to crush or squeeze something so that it becomes wrinkled and loses its shape
2. to become wrinkled or crushed
3. to collapse suddenly, especially from weakness or pressure

1. a wrinkled fold or crease

Examples

• She crumpled the paper and threw it in the trash.
• The car’s front end crumpled in the accident.
• His shirt was badly crumpled after the long flight.
• The old building crumpled under the weight of the snow.
• He smoothed out the crumples in the document.
• The fabric crumples easily if not stored properly.
• Her face crumpled with disappointment.