to change from a curled condition; straighten
verbun·curled, un·curl·ing, un·curls
To unwind from or as if from a curl, coil, spiral, or curled position: uncurled my fists.
To become unwound from a curl: fern fronds uncurling in the spring air.
(third-person singular simple present uncurls, present participle uncurling, simple past and past participle uncurled)
un- +"Ž curl