uncrinklev.
1. intransitive. To lose crinkles, to become less crinkled.
ΘΚΠ
the world > space > shape > flatness or levelness > smoothness > become smooth [verb (intransitive)] > become free from wrinkles
unwrinkle1827
uncrumple1866
uncrinkle1904
1904 G. A. B. Dewar Glamour of Earth viii. 173 The tiny leaves will be uncrinkling in a day or two about the dark twiggy bole.
1935 E. Bowen House in Paris ii. vii. 165 No one with him to smile and make his face uncrinkle.
2. transitive. To remove crinkles from.
ΘΚΠ
the world > space > shape > flatness or levelness > smoothness > make smooth [verb (transitive)] > remove wrinkles from
uncrumple1611
unwrinkle1611
unridge1631
erugate1656
unrumple1694
unpucker1775
unrimple1800
uncrinkle1911
1911 W. De Morgan Likely Story v. 136 He uncrinkled a result of the shape of that letter-box.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019).
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v.1904