- 前所未有 qiánsuǒwèiyǒu unprecedented(idiom) unprecedented; never seen before; hitherto unknown
- 空前未有 kōngqiánwèiyǒu unprecedentedunprecedented; having never happened before or without parallel; unique
- 亘古未有 gèngǔwèiyǒu unprecedentedunprecedented; never seen before since ancient times
- 旷古未有 kuànggǔwèiyǒu unprecedented in history(idiom) never before seen throughout history; unique since ancient times