underbred
adj. 没教养的;下流的;劣种的
v. 不良教育(underbreed 的过去分词)
例句
We are underbred and low-lived and illiterate;
我们是愚昧无知、不学无术的文盲;
They plainly did not know how to treat me, but behaved like persons who are underbred.
他们显然不知道该怎样对付我,他们的举止就像些没教养的人。