From Latin nefārius (“execrable, abominable”), from nefas (“something contrary to divine law, an impious deed, sin, crime”), from ne- (“not”) + fas (“the dictates of religion, divine law”), related to for (“I speak, I say”), and cognate to φημί (phemi, “I say”).
- infamous for being wicked
- The nefarious wizard was known for burning people alive during his secret rituals.
- sinful, villainous, criminal or (extremely) wicked
- The nefarious gangster was finally brought to justice.