verb
1.
to press or twist into folds or wrinkles
crumple a piece of paper
Synonyms: crimp, crimple, crinkle, ||crunkle, rimple, ruck (up), ||ruckle, rumple, screw, scrunch, wrinkle
Related Word: crease, fold; buckle, cockle; wad
Antonyms: smooth
2.
Synonyms: give 12, bend, break, cave, collapse, fold up, go, yield