tabu
tabu - noun
a prejudice (especially in Polynesia and other South Pacific islands) that prohibits the use or mention of something because of its sacred nature
an inhibition or ban resulting from social custom or emotional aversion
tabu - adjective
- forbidden to profane use especially in South Pacific islands
- excluded from use or mention
tabu - thesaurus
forbidden
out
prohibited
proscribed
taboo
verboten