前
Start learning with MaruMori now and gain access to in-depth Grammar Lessons, Vocabulary, Kanji and Grammar SRS, Reading Exercises, Mock Exams, Mini Games and more!
前代未聞
ぜんだいみもん
unheard-ofぜんだいみもん
1. Unheard-of; Unprecedented; Unparalleled in history (unparallelled); Record-breaking yojijukugo.