The Anti-Defamation League is refusing to accept Kyrie Irving's donation ... with its CEO saying in a statement Thursday the org. is giving back the $500K that the Nets star donated this week.
Jonathan Greenblatt made the announcement on his Twitter page -- just minutes after Brooklyn suspended the point guard for at least five games.
In his statement, Greenblatt said that after Irving refused to specifically apologize for tweeting out a link to a film that contained antisemitic rhetoric despite having multiple opportunities to do so .