Wordnet 3.0
ADJECTIVE (1)
1. 
 lacking a belt; 
- Example: "unbelted jackets are in this season"[syn: unbelted, beltless]
WordNet (r) 3.0 (2006):
unbelted
    adj 1: lacking a belt; "unbelted jackets are in this season"
           [syn: unbelted, beltless] [ant: belted]