I live opposite (to) the post office.
我住在邮局的对面。
My view is opposite to/from yours.
我的看法和你的相反。
My view is the very opposite of yours.
我的想法和你的非常相反。
The house opposite is an old one.
对面的房子是旧的。
The opposite house is an old one.
对面的房子是旧的。
It is white.
但是有多个contraries如It is not white.It is coloured.