"Impressive" describes an accomplishment that you think is good, which not many people are able to do. You say this to praise someone in a slightly formal way. A: He built the whole thing himself.

What does it mean if someone is impressive?

unimpressive. B2. If someone is impressive, you admire or respect that person for their special skills or abilities: She's a very impressive public speaker.

What does it mean when someone says I'm impressed?

To be impressed, something has to leave an impression on you — it has to be special or unusually good or particularly emotional enough that you remember it or it stands out.