Definition of astound in US English:

astound

verb

[with object]
  • Shock or greatly surprise.

    ‘her bluntness astounded him’
    • ‘It wouldn't be stretching the truth too much to say I was astounded.’
    • ‘Their influence over governments astounds me.’
    • ‘Firefighters were called to the scene at 9.15 am and were astounded that the building had not gone up in flames.’
    • ‘Some of them work enormously hard and, to be honest, how some can cope with full-time jobs and doing what they do astounds me.’
    • ‘She astounds us all - we just look at her in absolute amazement.’
    • ‘The stupidity of this government and its inability to manage this country effectively and fairly astounds me.’
    • ‘They wonder why the project doesn't work and it astounds me that they have to wonder that.’
    • ‘It still astounds me to see the damage that can be done to kids.’
    • ‘My son is not yet four, so the fact that he was able to process such things astounds me.’
    • ‘It still astounds me that anyone ever remembers that as a good moment for Democrats.’
    • ‘It always astounds me how much she does around here.’
    • ‘What astounds me is not how much we love our country but the lack of bold admissions from others that they love their countries.’
    • ‘Her capacity for stupidity has surprised her in the past, but now it astounds her.’
    • ‘Sources last night said Sir Ronnie and his senior officers were left astounded, and angry, by the break-in.’
    • ‘What really astounds me is that our law enforcement agency shows so little respect for the law.’
    • ‘The subsequent response and quality of the entries astounded the organisers.’
    • ‘I was astounded that people actually felt comfortable about printing stuff like that in public.’
    • ‘At times, the generosity of people astounds me.’
    • ‘The success of the tour genuinely astounds him.’
    • ‘You know, I'm constantly astounded by how unprepared some people are for publicity.’
    • ‘They astound the audience with their skill and technique in throwing the device around and manoeuvring it on the string.’
    amaze, astonish, stagger, surprise, startle, stun, confound, dumbfound, stupefy, daze, nonplus
    View synonyms

Origin

Middle English (as an adjective in the sense ‘stunned’): from astoned, past participle of obsolete astone (see astonish).

Pronunciation

astound

/əˈstound//əˈstaʊnd/