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Unseamed
- smooth, especially of skin; "his cheeks were unlined"; "his unseamed face"
- having no seams; "an unseamed garment made of plastic"
Unsmooth
- having or caused by an irregular surface; "trees with rough bark"; "rough ground"; "rough skin"; "rough blankets"; "his unsmooth face"
Unfurrowed
- not marked with shallow depressions or furrows; "an unfurrowed field"; "unfurrowed cheeks"
Undulate
- having a wavy margin and rippled surface
- increase and decrease in volume or pitch, as if in waves; "The singer's voice undulated"
- move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach"
- stir up (water) so as to form ripples
- occur in soft rounded shapes; "The hills rolled past"
Unrifled
- of a firearm; not having rifling or internal spiral grooves inside the barrel
Unsocial
- not seeking or given to association; being or living without companions; "the unsocial disposition to neglect one's neighbors"
Ungregarious
- (of animals) not gregarious
- (of plants) growing together in groups that are not close together
- not disposed to seek company; "a lonely ungregarious person"
Unshuttered
- not provided with shutters or having the shuttered open; "unshuttered windows"