unwrinkled

Etymology

From un- + wrinkled.

adj

1. Without wrinkles.
   an unwrinkled face
   Where hee beheld the Sea’s unwrinkled face, Smile again on him with alluring Grace. 1649, Leonard Willan (translator), The Phrygian Fabulist or, The Fables of Æsop, London: Nicolas Bourn, 101. “The Shipwrackct Shepherd,” p. 84, Emtie escaping, home return’d again; A few daies after to the same place came
   Where pity, to the mind conveyed In pleasure, is the darkest shade That Time, unwrinkled grandsire, flings From his smoothly gliding wings. 1832, William Wordsworth, “The Gleaner (Suggested by a picture)”, in The Poetical Works of William Wordsworth, volume 3, London: Longman, Rees, Orme, Brown, Green, & Longman, page 253
   Muley’s face was smooth and unwrinkled, but it wore the truculent look of a bad child’s, the mouth held tight and small, the little eyes half scowling, half petulant. 1939, John Steinbeck, chapter 6, in The Grapes of Wrath, Pengin, published 1992, page 61
   The lieutenant of the watch, his telescope quite dazzling with polished brass and pipe-clayed twine, wore spotless and unwrinkled white trousers; the buttons on his well-fitting coat winked in the sunshine. 1953, C. S. Forester, chapter 9, in Hornblower and the Atropos, London: Michael Joseph

verb

1. simple past and past participle of unwrinkle