Scandal
What do you hear that is really ugly? A scandal. Scandals are the ugliest topics for gossip.
しゅうぶん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
誰がこんな根も葉もない醜聞を流したんだ。
Who spread this completely untrue scandal?