Definition of pretenderism in English:

pretenderism

noun

rare
  • Support for a pretender to a throne or other seat of power; specifically (with capital initial) adherence to the cause of the Old or Young Pretender; = "Jacobitism" (now historical).

Origin

Early 18th century; earliest use found in George Hickes (1642–1715), bishop of the nonjuring Church of England and antiquary. From pretender + -ism.

Pronunciation

pretenderism

/prɪˈtɛndərɪz(ə)m/