astonishing

An astonishing thing is surprising and amazing, often because it's unexpected or extraordinary.

When we say that something is astonishing, we usually mean that it's extremely impressive or remarkable. We might use this word to describe a natural wonder like a breathtaking sunset or a majestic mountain range. Or maybe you saw an incredibly talented musician perform live – their skills could be described as astonishing. Sometimes people will even use the word when talking about a surprising event, like winning a major prize or achieving something they never thought possible. For example: "The new movie just broke box office records – it's astonishing how popular it is!"