followers of an unorthodox, extremist, or false religion or sect who often live outside of conventional society under the direction of a charismatic leader(noun.group)
source: wordnet30
a religion or sect that is generally considered to be unorthodox, extremist, or false(noun.cognition)
Example: It was a satanic cult.
source: wordnet30
a system of religious beliefs and rituals(noun.cognition)
Example: Devoted to the cultus of the Blessed Virgin.