綿密

プログレッシブ和英中辞典(第4版)

めんみつ【綿密】

綿密な（に） 〔細密な〕minute(ly) [mainjúːt(li)|-njúːt-]；〔正確な〕exact(ly)；〔周到な〕careful(ly)；〔細心の〕scrupulous(ly)

綿密な観察
minute observation

綿密な計画を立てる
make a detailed plan

綿密に調査する
make a close [careful] investigation ((of))

彼の行動は綿密な計算の上だ
「He acted like that after [His actions were based on] careful calculation.／His actions were carefully calculated.

出典　小学館「プログレッシブ和英中辞典(第4版)」