To a degree that causes shock or awe; shockingly.(adverb)
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Use "breathtakingly" in a sentence
"The leader of the National Union of Journalists, Michelle Stanistreet, said the now-defunct paper ordered private eye Derek Webb to join the union in what she called a "breathtakingly cynical" move."
"Then it’s off to Peru, Egypt, Greece and other areas for her assignment in breathtakingly attractive environments."
"Yet the resultant may accurately be described as breathtakingly ingenious even though what is in the filtrate was in the material filtered."