Free from wrinkles; smooth.

Of persons: Having a face free from hair, wrinkles, etc.; clean-shaven, beardless.

Having a smooth skin.

Not pleated; (in later use) spec. (of fabric or a garment) not folded or stitched into pleats.

(un-, prefix1 affix 2.)

Of persons: Having a smooth skin, esp. as the result of being in good condition; plump.

Marked by sleek condition.

Of the face, brow, etc.: not furrowed deeply with wrinkles. Cf. plough, v. 6. Now rare.

Not marked with lines; not having lines traced or impressed on the surface; esp. (of skin) having no wrinkles or creases.