How do you translate: Keine Selbstverständlichkeit

[Torsten]

Hi, how would you translate "Keine Selbstverständlichkeit"? It's a phrase describing something that doesn't go without saying. In other words, it's something that shouldn't be for granted.

Many thanks,
Torsten

TOEIC listening, photographs: A warehouse full of boxes

[Vinicio]

the literal translation ot the words is meaning lack of naturalness, but it is understood as " straining"

[Jamie (K)]

We usually say it's "not obvious that..."