go back to the drawing board

Verb

idiomatic

(idiomatic) To start again; to scrap a previous idea or plan and try again from the beginning.

Japanese Meaning

最初からやり直す / 元の計画を捨て、新たな計画を立てる / 白紙に戻して再考する

After the client rejected our proposal, we had to go back to the drawing board and redesign the app.

クライアントが私たちの提案を却下したので、最初からやり直してアプリを再設計しなければなりませんでした。

Sense（1）

(idiomatic) To start again; to scrap a previous idea or plan and try again from the beginning.

goes back to the drawing board

（ present singular third-person ）

going back to the drawing board

（ participle present ）

went back to the drawing board

（ past ）

gone back to the drawing board

（ participle past ）