Muscular
Part of speech: adjective
Definition: Of, related to, or connected with muscles. Brawny, having strength. Having large, well-developed muscles.
Example sentence: I was striving to be the most muscular man, and it got me into the movies. It got me everything that I have.
Powerful
Part of speech: adjective
Definition: Having, or capable of exerting power, potency or influence.
Example sentence: He who controls others may be powerful, but he who has mastered himself is mightier still.