What is the meaning of にこだわる?

[code]

    英語での記載にこだわる理由は何でしょうか？
    今まで通り(日本語で)に記載して頂きたいです。
    
[/code]

I have no idea what `にこだわる` means here.

The nuance is once day, my Japanese translator who suddenly switched to
English (instead of Japanese like normal) to translate a question, and she
submitted it to the Japanese client.

After that, I received above feedback from my client. My translator told me
that the question was a little bit tricky to translate to Japanese, so she
decided to go with English. It seems like the client was not happy with
English there, so I guess the `にこだわる` means something like `get stuck`,
doesn't it?




While there is an argument to be made that this question can be answered by a
dictionary lookup (as provided by macraf), I think that `こだわる` can be a little
bit tricky sometimes and so this warrants an answer.

`こだわる` can mean things across a fairly wide range of English words. Jisho
provides a [decent
definition](https://jisho.org/search/%E3%81%93%E3%81%A0%E3%82%8F%E3%82%8B),
although as always the monolingual dictionary has [more
info](https://kotobank.jp/word/%E3%81%93%E3%81%A0%E3%82%8F%E3%82%8B-267279).
Very broadly, it typically has to do with having a strong preference or
concern in a way that is unexpected. It can be unexpected because it's just
not something most people care about that much, unexpected because the actual
preference is unusual, or both.

For example

> 細かいことにこだわる

describes being nitpicky about small details, or as Jisho aptly translates it
"splitting hairs". It can also express explicit choices motivated by unusual
preferences as above, which is what's happening in your case. For

> 英語での記載にこだわる理由は何でしょうか？

a very literal translation might be

> What is the reason that (you) insist on writing in English?

`insist` here is the closest thing I can think of in English that captures the
nuance of choosing something in spite of implied norms or better practices.




While there is an argument to be made that this question can be answered by a
dictionary lookup (as provided by macraf), I think that `こだわる` can be a little
bit tricky sometimes and so this warrants an answer.

`こだわる` can mean things across a fairly wide range of English words. Jisho
provides a [decent
definition](https://jisho.org/search/%E3%81%93%E3%81%A0%E3%82%8F%E3%82%8B),
although as always the monolingual dictionary has [more
info](https://kotobank.jp/word/%E3%81%93%E3%81%A0%E3%82%8F%E3%82%8B-267279).
Very broadly, it typically has to do with having a strong preference or
concern in a way that is unexpected. It can be unexpected because it's just
not something most people care about that much, unexpected because the actual
preference is unusual, or both.

For example

> 細かいことにこだわる

describes being nitpicky about small details, or as Jisho aptly translates it
"splitting hairs". It can also express explicit choices motivated by unusual
preferences as above, which is what's happening in your case. For

> 英語での記載にこだわる理由は何でしょうか？

a very literal translation might be

> What is the reason that (you) insist on writing in English?

`insist` here is the closest thing I can think of in English that captures the
nuance of choosing something in spite of implied norms or better practices.

