前人未到 ぜんじんみとう Also written 前人未踏 Meanings の-adjective, Noun untrodden (region, field of study, etc.); unprecedented (discovery, achievement, etc.) Kanji 前 front. Read as ゼン. 人 person. Read as ジン. 未 not yet 到 arrive. Read as トウ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists