prudishness       
noun [ U ]  disapproving uk/ˈpruː.dɪʃ.nəs/ us/ˈpruː.dɪʃ.nəs/ (also prudery, /ˈpruː.dər.i/ /ˈpruː..dɚ.i/)
 (对性问题)大惊小怪,迂腐守旧,伪善
the quality of being very easily shocked by rude things, especially by anything relating to sex
  the prudishness of Victorian Britain 英国维多利亚时代对性问题的审慎 
 See: prude
 - More examples
 - I loved his simplicity and the old-fashioned prudishness that stops him even from spelling out 'hell', which he writes as 'h-l'.
 - During Queen Victoria's reign, the prudishness of the day led to segregated swimming.
 - It may, of course, be pure, old-fashioned prudishness that makes some women insist their men stay outside while they give birth.
 - The phallus could be intended as a way of poking fun at his prudery.
 - There is a parallel between Victorian prudishness and today's judgmental self-righteousness.