verb (used with object)

to overwhelm with amazement; astonish greatly; shock with wonder or surprise.


Archaic. astonished; astounded.

Nearby words

  1. astonishing,
  2. astonishment,
  3. astor,
  4. astor, john jacob,
  5. astoria,
  6. astounded,
  7. astounding,
  8. astr-,
  9. astr.,
  10. astrachan

Origin of astound

1275–1325; Middle English astoun(e)d, past participle of astonen, variant of astonyen to astonish

Related formsas·tound·ment, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for astound

British Dictionary definitions for astound



(tr) to overwhelm with amazement and wonder; bewilder

Word Origin for astound

C17: from astoned amazed, from Old French estoné, from estoner to astonish

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

Word Origin and History for astound



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.

Online Etymology Dictionary, © 2010 Douglas Harper