polar opposite

The complete opposite, opposite in every way.

Japanese Meaning

正反対 / 全く逆のもの / 完全な逆

Her taste in music is the polar opposite of mine.

彼女の音楽の趣味は私とはまったく正反対だ。

Sense（1）

The complete opposite, opposite in every way.

Rusticity and Urbanity are polar opposites—and there lie between many million modes of Manners.

polar opposites

（ plural ）