slangadvancedgermany
Das ist nicht ohne.
/das ɪst nɪçt ˈoːnə/
That's no joke. / That's serious.
Literal translation
That's not without.
When to use it
Understated German way to say something is harder/more impressive than it looks.
In conversation
—Drei Stunden Bergtour — das ist nicht ohne.
“—Three-hour mountain hike — no joke.”