海千山千 うみせんやません Meanings の-adjective, Noun cunning and experienced in the ways of the world; crafty and worldly-wise; sly old (fox) Kanji 海 sea. Read as うみ. 千 thousand. Read as セン. 山 mountain. Read as セン. Example sentences あいつは海千山千だから、取り引き相手としてはかなり手強いぞ。All those tricks he's got up his sleeve make him a formidable client. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists