遠慮しないで

don't hesitate

→ 遠慮
phrase Rare #29,764
don't hesitate Used to encourage someone to ask, take, or do something freely without worrying about inconveniencing others. A more polite version is 遠慮しないでください.
JA: 分からないことがあったら、遠慮しないで聞いてください。
EN: If there's anything you don't understand, don't hesitate to ask.

質問があったら遠慮しないで先生に聞きなさい

If you have any questions, don't hesitate to ask your teacher.

遠慮しないで

Don't hold back.

— TAXi (1998)

そんな遠慮しないで

Don’t be so reserved.

遠慮しないでどんどん食べな

Don’t hold back—eat as much as you like.

何か聞きたいことあったら遠慮しないで聞いて

If you have any questions, don't hesitate to ask.

遠慮しないで

Don't hold back.