1. 不尊敬的：- tender 温柔的, 亲切的 | - irreverent 不尊敬的 | - disapproving 不赞成的

2. 无礼的：irreparable不可挽回的 | irreverent无礼的 | irrevocable不可改变的

3. 不敬的：irreverence 不敬 | irreverent 不敬的 | irreverently 不敬地

4. 不虔诚的：???? irresponsible,不负责任的 | irreverent 不虔诚的 | illegal,? 非法的

1. 不尊敬的;不恭的
If you describe someone as irreverent, you mean that they do not show respect for people or things that are generally respected.

e.g. She's irreverent, fun and hugely popular...
她不惧权威，幽默风趣，很受欢迎。
e.g. Taylor combined great knowledge with an irreverent attitude to history.
泰勒知识渊博，而且并不把历史太当回事。

adj

1. not revering god

Synonym: godless

2. showing lack of due respect or veneration

e.g. irreverent scholars mocking sacred things
noisy irreverent tourists

3. characterized by a lightly pert and exuberant quality

e.g. a certain irreverent gaiety and ease of manner

Synonym: impertinentpertsaucy