charlatanism

This term describes a systemic pattern of deception where an individual masquerades as an expert to exploit the trust or desperation of others. It carries a heavy negative connotation, implying not just a simple lie, but a calculated performance of authority and prestige used as a tool for fraud.

Because it refers to a conceptual practice or a state of being, the word is treated as an uncountable mass noun. It does not have a plural form and cannot be counted with numbers; instead, one would refer to an instance of charlatanism or a history of charlatanism to describe specific occurrences.