He has an 'impressive' vocabulary for a 10-year-old.
a large and 'impressive' [='imposing'] building
Her first performance was very 'impressive'.
(..) if you so much as scratch that glass, it's feet straight down in a steel trap. You get how that works? Ant, boot. It's an impressive cage. Not built, I think, for me. Built for something a lot stronger than you. Oh, I've heard. You threaten my world with war. (..)2012 The Avengers