That's quite a revelation.
C1Expresses surprise at a newly discovered fact.
Goodness gracious!
C1Expresses strong surprise or astonishment.
Crikey!
C1Informal expression of surprise or amazement.
My jaw dropped.
C1Expresses extreme surprise, often visually.
I'm flabbergasted.
C1Extremely surprised and astonished.
That's astounding!
C1Expresses great surprise and admiration.
I'm speechless.
C1So surprised that one is unable to speak.
I'm gobsmacked.
C1Informal; extremely shocked and surprised.
You don't say!
C1Expresses surprise or disbelief.
Fancy that!
C1Expresses mild surprise or amusement.
No way!
C1Informal; expresses disbelief or strong surprise.
Really?
C1Expresses polite disbelief or mild surprise.
For crying out loud!
C1Expresses exasperation and surprise.
This is unexpected.
C1Expresses surprise at an unforeseen event.
I never would have guessed.
C1Expresses surprise at an unforeseen outcome.
That's a shock.
C1Expresses a strong feeling of surprise and often unpleasantness.
Imagine that!
C1Expresses surprise and a sense of incredulity.
Would you believe it?
C1Expresses disbelief and surprise.
I'm taken aback.
C2Surprised and slightly shocked.
That's quite a bombshell.
C2That's a very surprising and shocking piece of news.
I'm utterly flabbergasted.
C2Extremely surprised and astonished.
It knocked my socks off.
C2It was extremely surprising and impressive.
I was completely floored.
C2I was extremely surprised and shocked.
My jaw dropped.
C2I was so surprised I couldn't speak.