marmoreal \mahr-MOR-ee-ul\

(adjective)
: of, relating to, or suggestive of marble or a marble statue especially in coldness or aloofness

《시어》 대리석의[같은]; 매끈하고 반들반들한, 흰, 차가운

Example sentence:
William surveyed Agnes with marmoreal coolness, his features rigid and disapproving.