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

• retentive
• retentively
• retentiveness
• retentivity
• retest
• rethink
• retiarius
• reticence
• reticent
• reticently
• retick
• reticle
• reticular
• reticular activating system
• reticular formation
• reticulate
• reticulated python
• reticulation
• reticule
• Reticulitermes
• Reticulitermes flanipes
• Reticulitermes lucifugus
• reticulocyte
• reticuloendothelial system
• reticulum