闻所未闻[wén suǒ wèi wén]
词典have never even heard of it：闻所未闻。
词典hear of many strange things which one has hitherto been unaware of
词典闻所未闻
词典hear what one has never heard before：闻所未闻。
词典It has never been heard of before.：闻所未闻。
闻所未闻[wén suǒ wèi wén]
have never even heard of it; hear of many strange things which one has hitherto been unaware of; hear what one has never heard before; It has never been heard of before.; never heard of such a thing; (This) is unheard-of.; That's unheard-of!:
例：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.