Pronunciation: (mus'kyu-lur),[key] —adj. 1. of or pertaining to muscle or the muscles: muscular strain. 2. dependent on or affected by the muscles: muscular strength. 3. having well-developed muscles; brawny.
4. vigorously and forcefully expressed, executed, performed, etc., as if by the use of a great deal of muscular power: a muscular response to terrorism. 5. broad and energetic, esp. with the implication that subtlety and grace are lacking: a muscular style. 6. reflected in physical activity and work: a muscular religion. 7. Informal.having or showing power; powerful: a muscular vehicle.