taboo, tabu -- (a prejudice (especially in Polynesia and other South Pacific islands) that prohibits the use or mention of something because of its sacred nature)
taboo, tabu -- (an inhibition or ban resulting from social custom or emotional aversion)
Overview of adj tabu
The adj tabu has 2 senses
taboo, tabu -- (forbidden to profane use especially in South Pacific islands)
forbidden, out, prohibited, proscribed, taboo, tabu, verboten -- (excluded from use or mention; "forbidden fruit"; "in our house dancing and playing cards were out"; "a taboo subject")