1. Not wrinkled or creased
   - unwrinkled

See also: unfurrowed

• unrespectability
• unrespectable
• unresponsive
• unresponsiveness
• unrest
• unrested
• unrestrained
• unrestrainedly
• unrestraint
• unrestricted
• unrestrictive
• unretentive
• unretrievable
• unrevealed
• unrevealing
• unreverberant
• unrevised
• unrevived
• unrewarded
• unrewarding
• unrhetorical
• unrhymed
• unrhythmic
• unrhythmical
• unrifled