Some great idioms to express the feeling of surprise, which are very useful for the IELTS speaking exam part 2.

Idioms to express the feeling of surprise

Feeling surprised and confused; Example: I was taken aback by his sudden outburst of anger.

Something that surprises you greatly; Example: The news that she had won the lottery really blew my mind.

Overwhelmed with surprise; Example: I was flabbergasted when she told me she had won the lottery.

Feeling astonished and amazed; Example: When I saw how much he had accomplished, I was gobsmacked.

Feeling shocked and dismayed; Example: I was shocked to my core when I heard the news of the tragedy.

Feeling overwhelmed with surprise; Example: I was blown away when I saw her performance on stage.

Feeling surprised and unprepared; Example: I was caught off guard when he asked me for my opinion.

Feeling so surprised that you can't think of anything to say; Example: I was speechless when he told me I had won the prize.