1. Not having a lining or liner
   "a thin unlined jacket" 
2. Smooth, especially of skin
   "his cheeks were unlined"
   - seamless, unseamed

See also: smooth

Antonym: lined

• sort of
• sort out
• sort program
• sortable
• sorted
• sorter
• sortie
• sortilege
• sorting
• sorting algorithm
• sorting program
• sortition
• sorus
• SOS
• sostenuto
• sot
• soteriological
• Corinthian order
• Coriolis effect
• Coriolis force
• corium
• Corixa
• Corixidae
• cork
• cork jacket