4 sentences

1. 这种陈旧的思想已经不合时宜了。

   zhè zhǒng chén​jiù de sī​xiǎng yǐ​jīng bù​hé​shí​yí le.

   These outdated ideas are no longer appropriate for the times.

   Source: Dong Chinese Dictionary

2. 既然这条规定已经不合时宜，那就废了吧。

   jì​rán zhèi tiáo guī​dìng yǐ​jīng bù​hé​shí​yí, nà jiù fèi le ba.

   Since this regulation is no longer appropriate, it should be abolished.

   Source: Dong Chinese Dictionary

3. 这种陈旧的观念在现代社会已经不合时宜了。

   zhè zhǒng chén​jiù de guān​niàn zài xiàn​dài shè​huì yǐ​jīng bù​hé​shí​yí le.

   These outdated ideas are out of step with modern society.

   Source: Dong Chinese Dictionary

4. 他在葬礼上讲笑话，显得非常不合时宜。

   tā zài zàng​lǐ shàng jiǎng xiào​hua, xiǎn​de fēi​cháng bù​hé​shí​yí.

   He told jokes at the funeral, which seemed very inappropriate.

   Source: Dong Chinese Dictionary