unheard-of

adj.

前所未闻的，无先例的，空前的；旷古未闻；

1. I imagine extraordinary intrigues and unheard of wines and passions.
   我想象到一些不同寻常的私情和前所未闻的醇酒和情欲。

Urban sounds unheard-of: a media archaeology of ubiquitous infospheres
Unheard-of Numbers and Invitations on the Web
Editorial: An Unheard-of Organology
Images, Talismans and Medicine in Jacques Gaffarel's 'Unheard-of Curiosities'
An Unheard-of Organology
Unheard-of: Music as Performance and the Reception of the New
'Unheard-of Mortality': The Black Death in Ireland
What if Something Really Unheard-of Happened?
'An Almost Unheard-of Analogy': Derrida Reading Levinas
An Almost Unheard-of Analogy