adjective
1. surprising greatly (Freq. 4)
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she does an amazing amount of work
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the dog was capable of astonishing tricks
• Syn: ↑amazing
• Similar to: ↑surprising
2. so surprisingly impressive as to stun or overwhelm
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such an enormous response was astonishing
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an astounding achievement
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the amount of money required was staggering
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suffered a staggering defeat
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the figure inside the boucle dress was stupefying
• Syn: ↑astounding, ↑staggering, ↑stupefying
• Similar to: ↑impressive
Useful english dictionary. 2012.