He has an 'impressive' vocabulary for a 10-year-old.
a large and 'impressive' [='imposing'] building
Her first performance was very 'impressive'.
(..) - Speak three names. - I can name anyone? - A man has said. The Stony Shore's not far from Torrhen's Square. More impressive prize than a few fisherman's daughters. Soon as Winterfell got word that we'd taken Torrhen's Square, the Starks would send their men to take it back. (..)2012 TvShow: Game of Thrones Title: The Old Gods and the New Season: 2 Episode 6