It was incredibly ancient and I didn't understand it at the time.

Are they old, incredibly ancient, or do they just act that way?

The shielding on this room was incredibly ancient and powerful.

One was incredibly ancient and looked more like an old corpse.

He seemed incredibly ancient, the skin of his face weathered like sandstone.

It might once have been a machine, in some incredibly ancient time.

Incredibly ancient as they are, those artifacts may give us knowledge of the Incarnation.

This forest had to be incredibly ancient, the oldest living thing she'd ever seen, perhaps.

For before her was another of the incredibly ancient structures, only this had no break.

These scrolls are incredibly ancient by our terms, and they're still less than 5,000 years old.