inenubilable

Incapable of being cleared of clouds.

As blue and gray go the clouds / Round and about, turning forever / Upon this focus which is the ineluctable you / This minute, this hour, this day, this afternoon that is forever, / Under this never inenubilable sky.

Our blue inenubilable Zembla, and the red-capped Steinmann, and the motorboat in the sea cave, and—

Inexplicable, mysterious, unclear.

They go, but are overwhelmed by an avalanche, while the wife and the huntsman escape unharmed. This business of the avalanche is treated by the critics as something quite inenubilable. Yet what could be plainer than [Henrik] Ibsen's meaning?

For there is nothing in England to be matched with what lurks in the vapours of these meadows, and in the shadows of these spires—that mysterious, inenubilable spirit, spirit of Oxford.