見落とし・見落し・見落|みおとしmiotoshi[0]heiban (flat)

1. nounoversight; omission; something overlooked; thing left unnoticed
   その計画けいかくには大おおきな見落みおとしがある。↗

   There is big oversight in that plan.

• Synonym手落ちておちNeutralAn oversight or fault in the handling of something, implying responsibility; not limited to failing to notice, unlike 「見落し」.
• Synonym落ち度おちどNeutralA blameworthy error or fault; frequently used in the negative as 「落ち度がない」, i.e. no fault can be found.
• Synonym抜かりぬかりNeutralA careless lapse, especially a gap left in one's preparations; very often used in the negative as 「抜かりない」, meaning nothing is overlooked.
• Synonym手抜かりてぬかりNeutralA failure caused by inadequate preparation; in meaning it is essentially synonymous with 「手落ち」.
• Related抜け目ぬけめNeutralA lapse or gap; mostly seen in the negative 「抜け目ない」, which describes a person as shrewd.
• Related過失かしつWrittenWritten/formal prose: negligence that causes damage or loss, with a legal flavour; the emphasis is on the harm carelessness brings.
• Related目こぼしめこぼしNeutralTurning a blind eye: knowingly letting a fault or wrongdoing go unchallenged. Deliberate, unlike the unintentional failing to notice of 「見落し」.
• Related漏れもれNeutralSomething omitted or leaked: typically an item missing from a list or roster; also liquid or gas escaping.
• RelatedケアレスミスCasualColloquial loanword for a careless mistake that a little more attention would have prevented; typical of exams and work.
• Related為落とししおとしWrittenWritten and rare: failing to do or write something that should be done, as when a required part of a document is left blank.
• Related疎漏そろうWrittenWritten and rare: omissions that result from handling information roughly or unsystematically instead of carefully.
• Related粗忽そこつNeutralA rash, thoughtless blunder — a fault caused by acting hastily; not tied specifically to overlooking things.
• Related粗相そそうNeutralA careless blunder or slip-up; it can also mean wetting or soiling oneself. Stresses causing trouble through carelessness.
• Related凡ミスぼんミスCasualColloquial for a basic, avoidable mistake that should never happen; often heard about play in matches or competition.
• RelatedそつCasualColloquial slip-up; most often in the phrase 「そつがない」, describing work so thorough that nothing can be faulted.
• Antonym見つけるみつけるNeutralAntonym: to find or spot something; stands opposite 「見落し」, which is about failing to notice.
• Antonym発見はっけんNeutralAntonym: discovery or detection; common in both speech and writing, and the opposite of overlooking something.

Use 「見落とし」 for something you failed to notice, as in 「見落としがないか確認する」. For a fault in the way something was handled, choose 「手落ち」; for a careless mistake, 「ケアレスミス」; for knowingly letting something pass, 「目こぼし」. Gaps in preparation are 「抜かり」 or 「手抜かり」; items missing from a list are 「漏れ」. 「過失」 is a written word with legal overtones; 「為落とし」 and 「疎漏」 are rare, bookish terms. 「落ち度」 stresses a blameworthy error, while 「凡ミス」 and 「そつ」 are colloquial. The antonyms 「見つける」 and 「発見」 describe finding what was missed.

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

1. 注意ちゅういが行き届いきとどかず、気きづかないでいること。また、そのようにして見逃みのがしたもの。