stupefyinglyadv.
/ˈstjuːpᵻfʌɪɪŋli/, /ˈstʃuːpᵻfʌɪɪŋli/, U.S. /ˈst(j)upəˌfaɪɪŋli/ In a manner or to an extent that causes stupefaction; (as an intensifier) to an astonishing or remarkable degree.
ΚΠ
1879 H. James Roderick Hudson (new ed.) III. v. 179 I listen to Mary..for the sake of her voice. It's stupefyingly [1875 (ed. 1) distractingly] sweet!
1896 Amer. Jrnl. Sociol. 2 361 The more stupefyingly monotonous the manipulation which the machine prescribes, the more must all stress be laid upon variety and thoroughness in the training of mind.
1901 W. D. Howells in N. Amer. Rev. Mar. 477 As for its amusements, they appear stupefyingly dull and of the intellectual quality of people who have no real duties or interests.
1979 P. Roth Ghost Writer (1980) i. 17 It became altogether clear just how stupefyingly unsuited he was to have and to hold anything other than his art.
2004 Independent 16 Mar. i. 30/4 Bush, Blair and Aznar are stupefyingly wrong, but let's not equate them with the indiscriminate Bin Laden.
2018 Nelson (N.Z.) Mail (Nexis) 4 Apr. 6 There's..an awful preponderance of boastful ‘look at me’ posts..and a huge amount of material that's stupefyingly banal.
This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022).
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adv.1879