WordWeb Online

1. Disturb the smoothness of
   "rumple the surface of the water"
   - ruffle, ruffle up, mess up
    
2. To gather something into small wrinkles or folds
   "She rumpled her lips"
   - pucker, cockle, crumple, knit
    
3. Become wrinkled or crumpled or creased
   "This fabric won't rumple"
   - crumple, wrinkle, crease, crinkle

Derived forms: rumpled, rumpling, rumples

Type of: crease, crinkle, crisp, disarrange, fold, fold up, ruckle, scrunch, scrunch up, wrinkle