Synonyms for inapproachable

Besides all these contradictions, he is solitary, unknown, inapproachable.

For sustained intensity and graphic description Marion Crawford's new novel is inapproachable in the field of recent fiction.

Terrible was the punishment of their sacrilege in thus approaching the inapproachable.

To the rest of his court as well as to his people, the Mikado remains an invisible, dumb, and inapproachable divinity.

Did the connection of God with his works terminate in an event which belongs to the inapproachable past?