adj. 25B6; adjective
muscular tissue : FIBROUS, sinewy.
he's very muscular : STRONG, brawny, muscly, sinewy, powerfully built, well muscled, burly, strapping, sturdy, powerful, athletic; Physiology mesomorphic; informal hunky, beefy; poetic/literary thewy.
a muscular economy : VIGOROUS, robust, strong, powerful, dynamic, potent, active.