wrinkle /ˈɹɪŋkl̩/noun 5verb 4forms 3 noun5 •A small furrow, ridge or crease in an otherwise smooth surface. •A line or crease in the skin, especially when caused by age or fatigue.Spending time out in the sun may cause you to develop wrinkles sooner. •A fault, imperfection or bug especially in a new system or product; typically, they will need to be ironed out.We need to iron out the wrinkles in the plan before implementing it. •(informal) A twist on something existing; a novel difference.We've added a couple of new wrinkles to the policy. •(dialect, US) A winkle verb4 •To make wrinkles in; to cause to have wrinkles.Be careful not to wrinkle your dress before we arrive. •To pucker or become uneven or irregular.An hour in the tub will cause your fingers to wrinkle. •To develop irreversibly wrinkles; to age.The skin is the substance that wrinkles, shows age, stretches, scars and cuts. •(no longer used) To sneer (at).Ther's some weakenes in your brother you wrinkle at — 1604 formswrinkled · wrinkling · wrinkles