adjective🔗ShareExtremely wicked or cruel."The bully's diabolical plan to trip the smaller boy was caught on the security camera. "charactermoralinhumannegativephilosophyChat with AIVocabulary GamePractice Reading
adjective🔗ShareOf or concerning the devil; satanic."The teacher's diabolical plan to test us on obscure facts was designed to confuse us all. "religionmythologytheologysupernaturalcharactermoralnegativeChat with AIVocabulary GamePractice Reading