brawn vs powerfulness

brawn

• Physical strength; muscularity. 

• Strong muscles or lean flesh, especially of the arm, leg or thumb. 

• A boar. 

• Head cheese; a terrine made from the head of a pig or calf; originally boar's meat. 

• Become fat, especially of a boar. 

• Make fat, especially of a boar. 

powerfulness

• The quality of being powerful.