puritanism

noun2

1. •
   Strict and austere religious conduct.
2. •
   Extreme strictness regarding moral scruples.

   • Some have argued that the closure of Fabric is symptomatic of a wider shift towards a new puritanism in Britain: a culture in which fun, hedonism and cultural experimentation are no longer valued. — 2016

noun1

1. •
   The beliefs and practices of the Puritans.