YOU SAID:

unfortunately i'm the absolute opposite of what you described

INTO JAPANESE

残念ながら、私はあなたが説明したものとは全く反対です

BACK INTO ENGLISH

Unfortunately, I am totally opposed to what you have explained.

INTO JAPANESE

残念ながら、私はあなたが説明したことに全く反対です。

BACK INTO ENGLISH

Unfortunately, I totally disagree with what you have explained.

INTO JAPANESE

残念ながら、私はあなたが説明したことにまったく同意しません。

BACK INTO ENGLISH

Unfortunately, I totally disagree with what you have explained.