contrary

她的意见与我的完全相反。

Her opinion is completely ___contrary to mine.

他说他很高兴，但事实恰恰相反。

He said he was happy, but the ___contrary was true.

尽管知道答案是对的，他还是故意唱反调说不正确。

Even though he knew the answer was correct, he was being ___contrary and said it was wrong.