pitiless

adj. 无情的,冷酷的,无怜悯心的

pitch-black, pitch-dark, pitch-pine, pitchblende, pitched, pitcher, pitchfork, piteous, piteously, piteousness, pitfall, pith, pith hat (also `pith helmet), pithily, pithiness, pithy, pitiable, pitiably, pitiful, pitifully, pitilessly, pitilessness, piton, Pitot tube, pitta, pittance, pitter-patter, Pittsburgh, pituitary, pity, pityingly, pivot, pivotal, pixel, pixie (also pixy), pizza, pizzicato, Pk, pkg, pkt,