綿密|めんみつmenmitsu[0]heiban (flat)

1. na-adjective, nounminute; detailed; careful; scrupulous; thorough
   彼かれは綿密めんみつに立たてた計画けいかくを実行じっこうに移うつした。↗

   He carried out the plan he had made in detail.

• Synonym緻密ちみつNeutralFine and tightly knit — dense structure or rigorous, precise thinking, as in 「緻密な計算」; 「綿密」 is about plans and investigations that leave no gaps.
• Synonym精緻せいちWrittenWritten/formal prose. Delicate and finely wrought; its typical home is fine craftsmanship or intricately crafted description.
• Synonym細密さいみつWrittenWritten/formal prose. Finely detailed, above all in depiction — as in 「細密画」, a minutely rendered painting.
• Synonym細心さいしんNeutralCareful caution, attention concentrated on the small points — as in the set phrase 「細心の注意」.
• Synonym細かいこまかいNeutralColloquial and very wide-ranging: small or fine, also trivial, and it can mean careful too.
• Synonym周到しゅうとうNeutralThorough in the sense of having thought of everything — considerate preparation, as in 「用意周到」.
• Synonym詳しいくわしいNeutralDetailed (of explanations) or knowing a subject inside out, as in 「歴史に詳しい」; centers on how well something is understood.
• Synonym精細せいさいWrittenWritten/formal prose. Fine, crisp detail — sharp images or clear description, as in 「高精細」.
• Synonym丹念たんねんNeutralPainstaking, with heart put into the work — as in 「丹念に調べる」 or 「丹念に資料を読む」.
• Synonym入念にゅうねんNeutralExtra care deliberately put in — as in 「入念な準備」 or 「入念に確認する」.
• Synonym念入りねんいりNeutralColloquial. Careful and conscientious, with the nuance of not cutting corners.
• Synonym注意深いちゅういぶかいNeutralWatchful and cautious — alert attention, as in 「注意深く観察する」.
• Synonym詳密しょうみつWrittenWritten/formal prose and rare. Exhaustive and thorough in content — covering every point in depth.
• Related詳細しょうさいNeutralDetails or particulars; describing something in full detail. Centers on spelling out specifics, not on the care behind a plan.
• Related明細めいさいNeutralItemized detail — things broken out line by line, as in 「明細書」 or 「給与明細」.
• Relatedきめ細かきめこまかNeutralFine-grained and attentive; its characteristic use is thoughtful service and personal care for people.
• Related事細かことこまかNeutralDescribes recounting or explaining something in full detail, as in 「事細かに説明」.
• Related精到せいとうWrittenWritten/formal prose and rare. Meticulous and thorough, with a nuance of deep, accomplished scholarship.
• Antonym大雑把おおざっぱNeutralThe opposite pole: rough, broad-brush, or careless — the antonym of thorough 「綿密」.
• Antonym粗雑そざつNeutralSloppy and rough in finish — careless work, the antonym of 「綿密」.
• Antonym粗略そりゃくWrittenWritten/formal prose. Coarse and cursory — the opposite of 「綿密」.

Use 「綿密」 for plans and investigations that leave no gaps, as in 「綿密な計画」 or 「綿密な調査」. For precise, tightly reasoned thinking or work, say 「緻密」; for considerate, attentive service, 「きめ細か」; for preparation that covers everything, 「周到」; for care in doing something, 「入念」, 「丹念」 or 「念入り」. For detail in what is said, use 「詳細」, 「詳しい」 or 「事細か」; for itemized lists, 「明細」; 「細心」 and 「注意深い」 stress caution. 「細かい」 is the everyday, wide-ranging word; the opposites are 「大雑把」, 「粗略」 and 「粗雑」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 細こまやかで細部さいぶまで行き届いきとどいていること。落おちがないこと。