standoffish

1. ADJ If you say that someone is standoffish, you mean that they behave in a formal and rather unfriendly way. 冷淡的; 不友好的[表不满]

He can be quite standoffish and rude, even to his friends. 他有时会很冷淡，很粗鲁，甚至对自己的朋友也是如此。