蓋世 がいせい Also written かいせい Meanings の-adjective, Noun matchless (heroism, spirit, resolve, etc.); peerless; overwhelming; world-dominating Kanji 蓋 lid. Read as ガイ. 世 generation. Read as セイ. Words containing 蓋世 抜山蓋世 (ばつざんがいせい) great strength and energy (of a mighty hero) Jinuma: Japanese Dictionary · Word lists