10 sentences

1. 他无缘无故地挨了一通骂。

   tā wú​yuán​wú​gù de ái le yī tòng mà.

   He was given a scolding for no reason at all.

   Source: Dong Chinese Dictionary

2. 他无缘无故地对我发脾气。

   tā wú​yuán​wú​gù de duì wǒ fā pí​qi.

   He lost his temper with me for no reason at all.

   Source: Dong Chinese Dictionary

3. 他经常无缘无故地发脾气。

   tā jīng​cháng wú​yuán​wú​gù de fā​pí​qì.

   He often loses his temper for no reason.

   Source: Dong Chinese Dictionary

4. 他总是无缘无故地对我发火。

   tā zǒng​shì wú​yuán​wú​gù de duì wǒ fā​huǒ.

   He always loses his temper with me for no reason.

   Source: Dong Chinese Dictionary

5. 他无缘无故被主管呛了一顿。

   tā wú​yuán​wú​gù bèi zhǔ​guǎn qiàng le yī dùn.

   His supervisor snapped at him for no reason.

   Source: Dong Chinese Dictionary

6. 你有病吧？干嘛无缘无故对他发火？

   nǐ yǒu​bìng ba? gàn​má wú​yuán​wú​gù duì tā fā​huǒ?

   Are you crazy? Why are you getting angry at him for no reason?

   Source: Dong Chinese Dictionary

7. 他最近火气很大，总是无缘无故发脾气。

   tā zuì​jìn huǒ​qì hěn dà, zǒng​shì wú​yuán​wú​gù fā pí​qi.

   He has been very irritable lately, always losing his temper for no reason.

   Source: Dong Chinese Dictionary

8. 我只是路过，没想到也无缘无故中枪了。

   wǒ zhǐ​shì lù​guò, méi xiǎng​dào yě wú​yuán​wú​gù zhòng​qiāng le.

   I was just passing by and didn't expect to get roasted for no reason.

   Source: Dong Chinese Dictionary

9. 他向来是个讲理的人，不会无缘无故发火。

   tā xiàng​lái shì gè jiǎng​lǐ de rén, bù huì wú​yuán​wú​gù fā​huǒ.

   He has always been a reasonable person and doesn't get angry for no reason.

   Source: Dong Chinese Dictionary

10. 这几个年轻人在商场里无缘无故地闹事。

    zhè jǐ gè nián​qīng​rén zài shāng​chǎng lǐ wú​yuán​wú​gù de nào​shì.

    These young people were making trouble in the mall for no reason.

    Source: Dong Chinese Dictionary