硬骨 こうこつ Also written 鯁骨 Meanings Noun bone Noun, の-adjective, な-adjective firmness (of character); backbone; unyielding spirit Kanji 硬 hard. Read as コウ. 骨 bone. Read as コツ. Words containing 硬骨 硬骨魚類 (こうこつぎょるい) bony fishes 硬骨漢 (こうこつかん) man of principle 硬骨魚 (こうこつぎょ) bony fish And 2 more. Jinuma: Japanese Dictionary · Word lists