tabu
ta-bu
noun
A social or religious prohibition against certain actions, words, or objects.
"Eating pork is a tabu in some cultures."
verb
To forbid or prohibit something by social or religious custom.
"The elders tabu certain foods during rituals."
adjective
Forbidden or considered improper due to social or religious custom.
"Certain topics are tabu in polite conversation."
Thesaurus
Synonyms: sacred, taboo, forbidden, impermissible, proscribed, prohibited, verboten, out