闻所未闻 [- suǒ wèi wén]have never even heard of it; hear of many strange things which one has hitherto been unaware of; have never heard before; It has never been heard of before.; never heard of such a thing; (This) is unheard-of.; That's unheard-of!:
•¶ 这些人都给了我许多闻所未闻的知识。 All of these people gave me a great deal of information I had never heard of.