Examples from the Web for underbred
I assumed that it had been developed in the City, where Charlie was picking up the curious nasal drawl of the underbred City man.The Works of Rudyard Kipling: One Volume Edition|Rudyard Kipling
If the girl had been awkward or underbred, she could have taken her in hand with a good grace.The Girls at Mount Morris|Amanda Minnie Douglas
Underbred, un′dėr-bred, adj. of inferior breeding or manners, vulgar: not pure-bred.
I should be sorry for him myself—if only he were not such an underbred beast!
There's something so underbred about crankiness; and the Harwich family have always been essentially aristocrats.Bella Donna|Robert Hichens