0 to make something become creased (= not smooth) or untidy:
1 to cause something smooth to become messy with unwanted folds:
The spreading five white petals are slightly rumpled.
Some say his jacket was hardly rumpled, but other reports stated that he was seriously injured.
He was small, his hair was always untidy, his clothes always looked rumpled.
Wears rumpled clothing in his campaigns, and claims his concern is with changing society as a whole.