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[stoo-puh-fahy, styoo-] /ˈstu pəˌfaɪ, ˈstyu-/
verb (used with object), stupefied, stupefying.
to put into a state of little or no sensibility; benumb the faculties of; put into a stupor.
to stun, as with a narcotic, a shock, or a strong emotion.
to overwhelm with amazement; astound; astonish.
Origin of stupefy
1590-1600; < Middle French stupefierLatin stupefacere to benumb, equivalent to stupe-, stem of stupēre to be numb or stunned + facere to make, do1; see -fy
Related forms
[stoo-puh-fahyd-nis, -fahy-id-, styoo-] /ˈstu pəˌfaɪd nɪs, -ˌfaɪ ɪd-, ˈstyu-/ (Show IPA),
stupefier, noun
stupefyingly, adverb
unstupefied, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for stupefyingly
Contemporary Examples
Historical Examples
  • And really Mr. Dundass pictures this year had been stupefyingly clever.

    The Angel of Pain E. F. Benson
  • The mighty arms spread wide as the beast plunged, stupefyingly quick for all his vast bulk and stunted legs.

    Shadows in the Moonlight Robert E. Howard
  • Bobby had shown himself on the road out to Bern a difficult boy, and stupefyingly ignorant.

  • The extent to which some persons can go on reading without having any clear idea of what they read is stupefyingly amazing!

British Dictionary definitions for stupefyingly


verb (transitive) -fies, -fying, -fied
to render insensitive or lethargic
to confuse or astound
Derived Forms
stupefier, noun
stupefying, adjective
stupefyingly, adverb
Word Origin
C16: from Old French stupefier, from Latin stupefacere; see stupefacient
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for stupefyingly



1510s (implied in past participle stupefact), from Middle French stupéfier, from Latin stupefacere "make stupid or senseless," from stupere "be stunned" (see stupid) + facere "to make" (see factitious).

Online Etymology Dictionary, © 2010 Douglas Harper
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