This is the 9611th most frequent Japanese word.
考え抜い
"考え抜い" means "to think through thoroughly."
In this sentence, '考え抜いた' is used to describe the act of thoroughly considering or thinking through something to the end.
彼はプロジェクトの計画を完全に考え抜いた。
He thoroughly thought through the project plan.
Here, '考え抜いた' emphasizes the rigorous and exhaustive effort put into the thought process.
成功する方法を見つけるために、彼女は一晩かけて考え抜いた。
She thought deeply overnight to find a way to succeed.
In this example, '考え抜いた' highlights the completed action of thorough deliberation leading to a decision.