1. extremely surprising or impressive; causing great wonder or amazement

Examples

• The magician performed an astonishing trick that left the audience speechless.
• She made astonishing progress in learning the language in just three months.
• The view from the mountaintop was absolutely astonishing.
• It’s astonishing how much technology has changed in the past decade.
• The athlete’s astonishing speed broke the world record.
• The scientist made an astonishing discovery about black holes.