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minute; detailed; careful; scrupulous; thorough
綿密な計画を立ててから実行した。
I made a detailed plan before taking action.
綿密に調査した結果、問題点が見つかった。
As a result of a thorough investigation, problems were found.
チームの綿密な連携が試合の勝利を引き寄せた。
The team's close coordination brought about the victory in the match.