The Oxford Thesaurus An A-Z Dictionary of Synonyms - wrinkle°n.

1) crease, fold, line, furrow, crinkle, crow's-foot, corrugation, pucker, ridge: She hasn't a wrinkle on her face - but then she's only nine. --v. 2) crease, fold, line, furrow, crinkle, corrugate, pucker, gather, ruck, crimp, screw up, rumple, crumple: I love the way you wrinkle your nose when you're perplexed.