Wordnet 3.0
ADJECTIVE (1)
1. 
 (of persons) lacking in refinement or grace; 
[syn: ill-bred, bounderish, lowbred, rude, underbred, yokelish]
WordNet (r) 3.0 (2006):
yokelish
    adj 1: (of persons) lacking in refinement or grace [syn: ill-
           bred, bounderish, lowbred, rude, underbred,
           yokelish]