Taboo

Words referring to things that are taboo: something to be avoided; a religious, social, or cultural restriction on behavior, as opposed to a government law.

• What words refer to a cultural restriction on behavior?
  taboo prohibition
• What words refer to making something taboo?
  make taboo forbid prohibit ban
• What words describe something that is taboo?
  taboo forbidden prohibited untouchable inviolable banned off-limits avoided