modified
muscular, fit, husky, wiry, springy, slim, fast, solid,
strapping, hardy, robust, strong, vigorous, active, energetic, agile, well-knit, powerful,
brawny, sinewy, sturdy, well-built, well-proportioned, Herculean*, Amazonian*, Titanic*, built like an
ox*, muscle-bound*.
Antonyms weak*, sickly, flabby.