How should I account for an intrusion so unexampled and audacious?

In a predicament so unexampled, how can it at all matter to me whatever you may elect to do?

But human reason can better comprehend the effect produced on a vast multitude of people by oppression so unexampled in its severity.

Ah, what will her kindred and ours say when they hear the tale of this brutish stupidity-offolly so unexampled and degrading?

The House had refused the money to reorganise the army, and it was this reorganised army which had achieved so unexampled a triumph.

What lay before her seemed so monstrous, so unexampled, that it was impossible that she ever could look forward to it firmly and calmly.