Wordnet 3.0
ADJECTIVE (2)
1. 
 not having a lining or liner; 
- Example: "a thin unlined jacket"2. 
 smooth, especially of skin; 
- Example: "his cheeks were unlined"- Example: "his unseamed face"[syn: seamless, unlined, unseamed]
WordNet (r) 3.0 (2006):
unlined
    adj 1: not having a lining or liner; "a thin unlined jacket"
           [ant: lined]
    2: smooth, especially of skin; "his cheeks were unlined"; "his
       unseamed face" [syn: seamless, unlined, unseamed]