腹黒 はらぐろ Meanings な-adjective, Noun malicious; scheming; black-hearted cruel (contrary to outward behavior); sly; black-hearted Kanji 腹 belly. Read as はら. 黒 black. Read as くろ. Words containing 腹黒 腹黒い (はらぐろい) mean Jinuma: Japanese Dictionary · Word lists