This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Simple past tense and past participle of uncurl.

adj. not curled

adj. not having been curled

"Little rags and shreds of smoke, so unlike the great silvery plumes that uncurled from the Sheridans 'chimneys."

uncurled    uncurling    uncurls   

change posture   

unbutton    unclose    together    unzip    shape-shifted