astonishing

Spencer had said; neither had the child tumbled out of the buggy nor had Matthew done anything astonishing.

“How very astonishing!” cried he at length.

Dantès possessed a prodigious memory, combined with an astonishing quickness and readiness of conception; the mathematical turn of his mind rendered him apt at all kinds of calculation, while his naturally poetical feelings threw a light and pleasing veil over the dry reality of arithmetical computation, or the rigid severity of geometry.

But I have seen things so extraordinary, that what you tell me seems less astonishing than it otherwise might.”