1. 
[syn: ill-mannered, bad-mannered, rude, unmannered, unmannerly]
2.  without artificiality;  natural; 
- Example: "the doctor's quiet unmannered entry"
The Collaborative International Dictionary of English v.0.48:
Unmannered \Unmannered\
   See mannered.
WordNet (r) 3.0 (2006):
unmannered
    adj 1: socially incorrect in behavior; "resentment flared at
           such an unmannered intrusion" [syn: ill-mannered, bad-
           mannered, rude, unmannered, unmannerly]
    2: without artificiality; natural; "the doctor's quiet
       unmannered entry"