1. Not having a coating of stain or varnish
   - unstained 
2. Free from any effort to soften to disguise
   "the plain and unvarnished truth"; "the unvarnished candour of old people and children"
   - plain

See also: direct, unpainted

• extendible
• extensible
• extensile
• extension
• extension agent
• extension cord
• extension course
• extension ladder
• extension phone
• extension service
• extensional
• extensive
• extensively
• extensiveness
• extensometer
• extensor
• extensor muscle
• extent
• extenuate
• extenuating
• extenuation
• extenuatory
• exterior
• exterior angle
• exterior door