In an astounding manner; so as to astound, surprise, or amaze.(adverb)
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Use "astoundingly" in a sentence
"It also defines a range of illegal e-mail practices that are routinely ignored in astoundingly high volume by spammers of the world."
"Inside the outside shell of national differences, we all face more or less similar trials and tribulations, and we often react to them in astoundingly similar ways."
"The media controversy itself helped introduce this remarkable work to an international audience, who embraced Tolkien, and his preferred publishers, in astoundingly unforseen numbers."