- a person who engages in any of a highly diverse group of religious, philosophical, or countercultural practices centered around Satan, either as a deity or a nontheistic symbol of enlightenment, individualism, or ethical egoism.
- a person who participates in a deliberate inversion of Christian rites in which Satan is worshiped.
- a person with a diabolical or satanic disposition or who engages in diabolical behavior; an evil person.
- relating to or engaging in any of a highly diverse group of religious, philosophical, or countercultural practices centered around Satan.
- diabolical; evil; satanic.
