fatalistic

His fatalistic attitude made him accept defeat easily.

彼の運命論的な態度は彼が敗北を簡単に受け入れさせました。

Don't be so fatalistic; you can change your future.

そんなに運命論的にならないで。未来は変えられます。

The fatalist accepted his failure without trying to change the outcome.

その運命論者は結果を変えようとせずに失敗を受け入れた。

As a fatalist, she believed that whatever happened was meant to be.

運命論者として、彼女は起こることはすべて運命だと信じていた。