N-COUNT 禁忌;忌讳 If there is a taboo on a subject or activity, it is a social custom to avoid doing that activity or talking about that subject, because people find them embarrassing or offensive. 禁忌;忌讳
The topic of addiction remains something of a taboo.
毒瘾仍然是个有些忌讳的话题。
Religious dogmas often include strong sexual taboos and can create in children the impression that sex is sinful.
宗教教义中经常包含严格的性禁忌,这会给儿童留下“性是罪恶”的印象。
Taboo is also an adjective.
Cancer is a taboo subject and people are frightened or embarrassed to talk openly about it.