Astounded

to overwhelm with amazement; astonish greatly; shock with wonder or surprise.
Archaic. astonished; astounded.
Contemporary Examples

King reminisced about his convention and was astounded at how little bad-blood lingered.
The Bizarro World Of Iowa’s GOP Convention Ben Jacobs June 22, 2014

All the old dinosaurs, who were astounded by the numbers involved.
The End Is Near! Jeffrey Leeds March 4, 2009

Pundits who had pronounced him toast were astounded that he left office with high approval ratings.
9 Ways to Survive a Sex Scandal Howard Kurtz June 11, 2011

So good is the latter—and Wayne so good in it—that Ford is said to have been astounded.
A New Biography Shows That ‘John Wayne’ Was His Own Best Creation Christopher Bray April 5, 2014

“I am speechless and astounded, this sentence is inexplicable,” he said.
Instagram Attacks Rihanna For Scandalous Photos; Dolce & Gabbana to Appeal Guilty Verdict The Fashion Beast Team April 30, 2014

Historical Examples

Bassett was astounded when he saw Dick’s signature on the hotel register.
The Breaking Point Mary Roberts Rinehart

They are astounded that the troops do not take it in good part.
The Story of the Malakand Field Force Sir Winston S. Churchill

Whatever the mental comment attached to the gaze, the eyes that meet mine are quite as often astounded as amused.
The Joys of Being a Woman Winifred Kirkland

The astounded guard burst into laughter at their absurd scare.
Cleveland Past and Present Maurice Joblin

The short-sighted thrift-preachers would naturally be astounded at the outcome.
The People of the Abyss Jack London

verb
(transitive) to overwhelm with amazement and wonder; bewilder
v.

mid-15c., from Middle English astouned, astoned (c.1300), past participle of astonen, astonien “to stun” (see astonish), with more of the original sense of Vulgar Latin *extonare. Related: Astounded; astounding.