1. past tense and past participle of diabolise; to portray or represent as evil, wicked, or devilish
Usage: chiefly British spelling (American: diabolized); formal or literary

Examples

• The media diabolised the political opponent throughout the campaign.
• Historical accounts diabolised certain religious groups unfairly.
• The villain was diabolised in the novel through exaggerated descriptions of cruelty.
• Critics argued that the documentary diabolised the corporation without presenting counterarguments.
• In propaganda, enemies were often diabolised to justify military action.