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Synonyms for Wrinkle (same or very similar meaning)

WordNet sense 1 (a slight depression in the smoothness of a surface):
crease, crinkle, furrow, line, seam

WordNet sense 2 (gather or contract into wrinkles or folds; pucker):

WordNet sense 3 (make wrinkles or creases into a smooth surface):
crisp, scrunch, ruckle, scrunch up

WordNet sense 4 (become wrinkled or crumpled or creased):
crumple, rumple

From the ODE community, based on WordNetadd/edit