anti-defamation
adjective[before noun]
formaluk/ˌæn.tiˌdef.əˈmeɪ.ʃən/us/ˌæn.taɪˌdef.əˈmeɪ.ʃən/intendedorintendingtopreventordealwithdefamation(= theactionofdamagingthereputationof apersonorgroupby saying or writingbadthings about them that are nottrue):
He said that anti-defamationlawsshould not be used tolimitfreespeech.
Hundreds ofincidentshave beenreportedto the anti-defamationgroup.
- There was already an anti-defamationclausewithin theexistinglegislation,forbiddingprejudiceanddiscriminationagainstminorityreligiousgroups.
 - Hedefendedthedecisiontoincludeanti-defamationlanguagein thedocument.
 
Damaging reputation
- aspersion
 - besmirch
 - black mark
 - blacken
 - blot
 - blotyourcopybookidiom
 - dog
 - dragsomeone'sname through the mire/mudidiom
 - give a dog a bad nameidiom
 - hurl/throw/sling mud atsomeoneidiom
 - impugn
 - poison
 - show someone in a bad lightidiom
 - slander
 - slanderer
 - slanderous
 - slanderously
 - smear
 - stab
 - stain