Die Diffamierung seines Rufes war ungerechtfertigt.

The defamation of his reputation was unjustified.

Die öffentliche Diffamierung des Politikers führte zu einer Klage.

The public defamation of the politician led to a lawsuit.

Er wehrte sich gegen die Diffamierungen in der Zeitung.

He defended himself against the slanders in the newspaper.