怠り|おこたりokotari[0]heiban (flat)

1. nounnegligence; carelessness

• Synonym不行き届きふゆきとどきWrittenWritten/formal prose. Care or management falling short of the details; more concrete than 「怠り」 and often used in apologies.
• Synonym手落ちておちNeutralNeutral. A slip where some part was not handled properly and led to an error; it points to the specific fault and does not stress laziness.
• Synonym怠慢たいまんWrittenWritten/formal prose. Not doing what one ought to do; a stronger condemnation than 「怠り」.
• SynonymなおざりWrittenWritten/formal prose. Treating things half-heartedly; usually as 「なおざりにする」. Stresses not taking something seriously.
• Synonym懈怠けたいFormalFormal and rare, read 「けたい」: laziness and neglect of duties. Read 「かいたい」, it is the legal term for non-performance of obligations.
• Synonym手抜かりてぬかりNeutralNeutral. A slip caused by insufficient preparation; synonymous with 「手落ち」.
• Synonym緩怠かんたいFormalFormal and rare. Letting the duties one should fulfil go slack; stiffer than 「怠り」.
• SynonymゆるがせWrittenWritten/formal prose. Stresses not taking something seriously; typically used as 「忽せにできない」.
• Related手抜きてぬきCasualColloquial. Deliberately skipping steps that should be done, cutting corners; 「怠り」 is a lapse in attention, not necessarily intentional.
• Related緩みゆるみNeutralNeutral. Slackness — letting one's guard down mentally, as in 「気の緩み」.
• Related無精ぶしょうWrittenWritten/formal prose. Laziness from finding things too much bother; describes a person's character or habits.
• RelatedやりっぱなしCasualColloquial. Leaving a task unfinished with no cleanup; an attitude problem, whereas 「怠り」 is a lapse in attention.
• Related疎慢そまんWrittenWritten/formal prose and rare. Work done carelessly, without thoroughness.
• RelatedたるみNeutralNeutral. The same word as 「緩み」, here written 「弛み」: slackness, as in 「気の弛み」; not specific to neglecting duties.
• RelatedないがしろWrittenWritten/formal prose. Treating something as if it were nothing, with a nuance of disrespect.
• Related放擲ほうてきFormalFormal and rare. Casting something aside and abandoning it; a strong degree of neglect.
• Related閑却かんきゃくFormalFormal and rare. Shelving or ignoring something, not necessarily deliberately; stiffer than 「怠り」.
• Related投げやりなげやりCasualColloquial. A defeatist, given-up attitude of doing things half-heartedly; 「怠り」 is mere carelessness.
• RelatedほったらかしCasualColloquial. Leaving something entirely unattended; 「怠り」 leans written and means a lapse in attention.
• Antonym勤しみWrittenWritten/formal prose. Diligent effort — the exact opposite of 「怠り」.

「怠り」 is a lapse in attention and often appears in the negative, as 「準備に怠りない」 for thorough preparation. For neglect of duties choose 「怠慢」, and for care that failed to cover the details 「不行き届き」, which suits apologies. 「手落ち」 and 「手抜かり」 name a specific mistake; 「なおざり」 and 「忽せ」 mean not taking something seriously; 「手抜き」 is deliberate corner-cutting; 「緩み」 is a lapse of vigilance; colloquial choices include 「やりっ放し」, 「投げやり」 and 「放ったらかし」; 「勤しみ」 is the opposite, diligence.

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

1. 注意ちゅういをはらわず、気きをつけないこと。