| 異例 | [いれい, irei] (adj-na, n, adj-no) exception; illness; singular; exceptional; unprecedented; (P) #9,754 [Add to Longdo] |
| 空前 | [くうぜん, kuuzen] (n, adj-no) unprecedented; record-breaking; (P) [Add to Longdo] |
| 史上空前 | [しじょうくうぜん, shijoukuuzen] (n) unprecedented in history; unheard-of; epoch-making [Add to Longdo] |
| 神武以来 | [じんむいらい;じんむこのかた, jinmuirai ; jinmukonokata] (adj-no, n-adv, n-t) since the era of the Emperor Jinmu; (first ever) since the dawn of Japan's history; unprecedented [Add to Longdo] |
| 前人未到;前人未踏 | [ぜんじんみとう, zenjinmitou] (adj-na, n) untrodden (region, field of study, etc.); unprecedented (discovery, achievement, etc.) [Add to Longdo] |
| 前人未発 | [ぜんじんみはつ, zenjinmihatsu] (n) unprecedented; unheard-of; never propounded (discovered, invented) by anyone before [Add to Longdo] |
| 前代未聞 | [ぜんだいみもん, zendaimimon] (n, adj-no) unheard-of; unprecedented; unparalleled in history (unparallelled); record-breaking; (P) [Add to Longdo] |
| 破格 | [はかく, hakaku] (adj-na, n) (1) extraordinary; special; exceptional; abnormal; unprecedented; (2) non-standard grammatical construction; ungrammatical usage; solecism; (P) [Add to Longdo] |
| 破天荒 | [はてんこう, hatenkou] (adj-na, n) unheard-of; unprecedented [Add to Longdo] |
| 未曾有;未曽有 | [みぞう;みそう, mizou ; misou] (adj-no, adj-na) unprecedented; unheard of [Add to Longdo] |
