emotionless

deadpan detached dispassionate impassive matter-of-fact unemotional

blank chill cold cold fish cold-blooded cool cool cat distant flat frigid glacial heartless icy immovable impersonal in cold blood indifferent laid back nonemotional nowhere poker face remote reserved stony-eyed thick-skinned toneless unimpassioned with straight face

biased emotional feeling passionate responsive

demonstrative sympathetic