正反対だ
The lifestyles of the two are the exact opposite.
二人の生活様式は正反対です
The lifestyles of the two are the exact opposite of each other.
二人の生活様式は互いに正反対です
The lifestyles of the two are the exact opposite of each other in almost every respect.
二人の生活様式はほぼすべての面で互いに正反対です
The lifestyles of the two are the exact opposite of each other in almost every respect, even on weekdays.
二人の生活様式は平日にもほぼすべての面で互いに正反対です
Now that they live together, the lifestyles of the two are the exact opposite of each other in almost every respect, even on weekdays.
二人の生活様式は一緒に暮らしてみると平日にもほぼすべての面で互いに正反対です