無二無三 むにむさん Also written むにむざん Meanings Noun, の-adjective in earnest; single-minded; with intense concentration; rushing headlong into one and only; unique Kanji 無 without. Read as ム. 二 two 三 three. Read as サン. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists