muscular in WordNet English dictionary

1. (of a person) possessing physical strength and weight; rugged and powerful
   "a hefty athlete"; "a muscular boxer"; "powerful arms"
   brawny  hefty  muscular  powerful  sinewy 
   
2. having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer
   mesomorphic  muscular 
   
3. of or relating to or consisting of muscle
   "muscular contraction"
   muscular 
   
4. having or suggesting great physical power or force
   "the muscular and passionate Fifth Symphony"
   muscular