Wiktionary
creaseless
a. That does not crease.
WordNet
creaseless
adj. used especially of fabrics; "uncreased trousers" [syn: uncreased]
Usage examples of "creaseless".
He wore creaseless flannel trousers and a brown tweed jacket with patches all over it and bits of dried food on the lapels.
He spoke briefly to the farmer dressed in creaseless brownskins, paid him a full scale, and came back with his arms loaded.
Texas Ranger star on the pocket was creaseless, his dark blue patterned tie in perfect order.