able-bodied athletic brawny broad-shouldered burly dour firm fundamentalist hard hidebound impliable inexorable inflexible iron ironbound ironclad ironhanded muscular obdurate obstinate orthodox procrustean purist puristic puritan puritanic relentless rigid rigorist rigoristic rigorous rockbound sinewy stiff straightlaced straitlaced stubborn thewy thickset unbending uncompromising unrelenting unyielding well-built well-knit well-set well-set-up wiry