- a small ridge or furrow in a normally smooth surface, caused by contraction, crumpling, folding, etc.
- a crease or pucker in the skin, as any of those caused by aging, frowning, etc.
- a minor problem or difficulty
Origin of wrinkleMiddle English wrinkel, a wrinkle, probably back-formation from wrinkled from Old English (ge)wrinclod, past participle of (ge)wrinclian, to wind about, akin to wringan, to press, wring
transitive verb-·kled, -·kling