taboo

1. N-COUNT A taboo against a subject or activity is a social custom to avoid doing that activity or talking about that subject, because people find them embarrassing or offensive. 禁忌

The topic of addiction remains something of a taboo in our family. 毒癮在我們家依然是個(gè)有些忌諱的話題。

2. ADJ Taboo is also an adjective. 禁忌的

Cancer is a taboo subject and people are frightened or embarrassed to talk openly about it. 癌癥是個(gè)禁忌的話題，人們對(duì)公開(kāi)談?wù)撍械胶ε禄驅(qū)嫁巍?/p>