悪い噂は

bad rumors

→ 悪い
phrase Rare #40,371
bad rumors 悪い噂 means “bad rumors,” and は marks it as the topic: “as for bad rumors.”
JA: 悪い噂はすぐに広がる。
EN: Bad rumors spread quickly.

悪い噂はよいより早く伝わる

Bad news travels faster than good news.

悪い噂はたちまち伝わる

Bad news spreads quickly.

悪い噂は広がるのがはやい

Bad news travels fast.

悪い噂はすぐに伝わるからね

Bad news travels fast, you know.