underbred

underbred (http://definr.com/underbred)

     adj 1: (of persons) lacking in refinement or grace [syn: ill-bred,
             bounderish, lowbred, rude, yokelish]
     2: of inferior or mixed breed; "a cur dog"; "an underbred dog"
        [syn: cur(a), mixed, mongrel(a), scrub(a)]