a.
1.
Strong, stout, sinewy, brawny, muscular, athletic, lusty, robust, sturdy, strapping, vigorous, powerful, puissant, able-bodied, Herculean, gigantic, stalworth.
2.
Brave, bold, manly, valiant, valorous, gallant, intrepid, daring, resolute, firm, indomitable, redoubtable, redoubted, vehement, violent.