言わなくていい

don't have to say

→ 言う
phrase Common #3,133
don't have to say 言わなくていい means that it is unnecessary to say something. The related phrase と言っていい in the first two examples means “it is fair to say” or “you can say.”
JA: 無理なら、無理に言わなくていいよ。
EN: If it's difficult, you don't have to force yourself to say it.

言わなくていい

You don't have to say it.

そのことは親に言わなくていいですよ

You don't have to tell your parents about it.

裁判で言いたくない事は言わなくていい

In court, you don't have to say anything you don't want to.

— 落下の解剖学 (2023)

お父さんに言わなくていい

You don't have to tell Dad.

— キャッチ・ミー・イフ・ユー・キャン (2002)

言わなくていい

You don't have to say it.

— プラットフォーム (2019)

それ以上言わなくていい

You don't need to say anything more.

— ラスト、コーション (2007)

何も言わなくていいんですよ

You don't have to say anything.

— TITANE/チタン (2021)

言いたくないことは言わなくていいからね

You don't have to say anything you don't want to.

僕を好きだなんて言わなくていい

You don't have to say that you love me.

— ア・フュー・グッドメン (1992)