adjective🔗ShareNefasto, malvado, criminalSinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics."Aliens have a nefarious connotation in many science fiction books."Los extraterrestres tienen una connotación nefasta en muchos libros de ciencia ficción.charactermoralinhumannegativeguiltlawChat with AIVocabulary GamePractice Reading