servile; subservient; obsequious; slavish; self-abasing; grovelling; spineless
彼の卑屈な態度が嫌だ。
I dislike his servile attitude.
失敗しても、卑屈になるな。
Don't be servile even if you fail.
彼は金持ちの顧客に卑屈な笑みを向けた。
He gave a servile smile to the rich customer.