wrinkliest

noun

1. a small ridge or furrow in a normally smooth surface, caused by contraction, crumpling, folding, etc.
2. a crease or pucker in the skin, as any of those caused by aging, frowning, etc.

Origin: ME wrinkel, a wrinkle, prob. back-form. < wrinkled < OE (ge)wrinclod, pp. of (ge)wrinclian, to wind about, akin to wringan, to press, wring

transitive verb wrinkled, wrinkling

intransitive verb