卑怯な

cowardly; underhanded

→ 卑怯だ
phrase Rare #34,592
cowardly; underhanded Often describes behavior considered unfair or dishonorable.
JA: 卑怯な手を使わないで。
EN: Don't use underhanded tactics.

卑怯なまねしないでよ。

Don't fight dirty.