n. A small furrow, ridge, or crease on a normally smooth surface, caused by crumpling, folding, or shrinking.n. A line or crease in the skin, as from age.n. A clever trick, method, or device, especially one that is new and different.n. A problem or imperfection; a fault: The report had to be revised because of a few wrinkles. v. To make wrinkles or a wrinkle in.v. To draw up into wrinkles; pucker: wrinkled her nose in disdain. verb-intransitive. To form wrinkles.