unblemished

adj. inmaculado, acendrado, depurado, impoluto, purificado, puro, sin mancha, sin tacha

puro

(adj.) = inmaculado, perfecto, impoluto, acendrado, intachable, sin tacha, sin mancha, sin defecto
Ex: Many traditional treatments, on the other hand, have tended to glorify him portraying him as an unblemished hero.