りゅうげんひご
false rumour (rumor); groundless rumour; canard
Also written 流言蜚語
Noun
流言飛語りゅうげんひごに惑まどわされるべからず、とはいうものの、言いうは易やすく行おこなうは難かたし、と思おもわない？
They say you shouldn't take rumors seriously, but that's easier said than done.