Taboo: m. It is what cannot be done, mention or treat because of certain social rules, prejudices, etc.: for some people to talk about sex is taboo, i.e. a subject prohido.
Taboo: m. It is what cannot be done, mention or treat because of certain social rules, prejudices, etc.: for some people to talk about sex is taboo, i.e., a forbidden subject.
Concept or idea without any quantifiable rationale that induces a ban or a sense of guilt.