1. the quality or state of being cultish; the characteristics or behavior typical of a cult or cult-like group
Usage: uncountable; often used to describe excessive devotion to a person, idea, or movement

Examples

• The cultishness of the online community became apparent when members refused to question their leader's decisions.
• Critics pointed to the cultishness surrounding the celebrity's fan base.
• The organization's cultishness was evident in its isolation of members from outside influences.
• She was concerned about the cultishness developing within the self-help group.
• The documentary exposed the cultishness of the movement through interviews with former members.
• His friends worried about the cultishness of his devotion to the new philosophy.