strong and nimble
Rare literary noun describing a person or movement that is both powerful and agile. Not used in everyday speech; found mainly in classical or highly formal writing.
In old martial arts texts, one can find expressions like 'movements that are strong and nimble.'
A Sino-Japanese compound of 勁 (strong, powerful) and 捷 (nimble, quick). The exact historical derivation is uncertain; it is a rare literary term.