根も葉もない

ねもはもない

groundless (rumour, accusation, etc.); unfounded; baseless; without a shred of truth

Also written 根も葉も無い

Meaning

expadj-i
groundless (rumour, accusation, etc.); unfounded; baseless; without a shred of truth

Example sentences

思いがけない大きな財産がころがりこんでくると信じることは、根も葉もないことだ。

To believe that an unexpected big fortune will come your way is to build a castle in Spain.
それは根も葉もない話だ。

It is a story made out of whole cloth.
そのうわさは根も葉もないことが分かった。

The rumor turned out to be groundless.