spitfire
n. C2 Proficiency UK //spˈɪtfaɪə// spit·fire Archaic
n. a very fast and powerful person or thing. You use this to describe someone who is full of energy and moves quickly.
n. a person or thing that is very fast, energetic, or powerful. Often used in the phrase 'to have the spitfire of a young man'.
He has the spitfire of a young man.
The old sailor still had the spitfire of his youth when he raced his grandchildren across the deck.
Despite his advancing years, the retired general retained the spitfire of his military career, often leading the local community in charity events with the same vigor he once showed on the battlefield.