taboo
adj
noun
təˈbuː adj
1 a taboo subject, word, activity etc is one that people avoid because it is extremely offensive or embarrassing 〔因会冒犯人或引起尴尬而〕禁忌的,忌讳的
Rape is a taboo subject .
强奸是忌讳的话题。
2 not accepted as socially correct 忌讳的,为社会习俗所不容的
It’s taboo to date a man a lot younger than you.
和一个年龄比你小很多的男人约会是犯忌讳的。
3 too holy or evil to be touched or used 〔因太神圣或太邪恶而〕禁止接触的,禁止使用的
noun
4 a custom that says you must avoid a particular activity or subject, either because it is considered offensive or because your religion does not allow it 禁忌,忌讳
[+ about/on/against ]
There are taboos against appearing naked in public places.
在公共场所赤身露体是犯禁忌的。