underbred

un·der·bred

U0048100 (ŭn′dər-brĕd′)adj.1. Poorly brought up; ill-bred.2. Of mixed breed; not thoroughbred.

underbred

(ˌʌndəˈbrɛd) adj1. (Breeds) of impure stock; not thoroughbred2. a less common word for ill-bred ˌunderˈbreeding n

Thesaurus

Adj.	1.	underbred - (of persons) lacking in refinement or gracebounderish, ill-bred, lowbred, yokelish, rudeunrefined - (used of persons and their behavior) not refined; uncouth; "how can a refined girl be drawn to such an unrefined man?"
	2.	underbred - of inferior or mixed breed; "an underbred dog"crossbred - bred from parents of different varieties or species