Common word› JLPT N2 › Freq. Frequency Top 10,000 Conjugation 油断する · noun or participle which takes 'suru'
Form Positive Negative Dictionary 油ゆ 断だん する 油ゆ 断だん しない Polite 油ゆ 断だん します 油ゆ 断だん しません Past polite 油ゆ 断だん しました 油ゆ 断だん しませんでした Past 油ゆ 断だん した 油ゆ 断だん しなかった Te-form 油ゆ 断だん して 油ゆ 断だん しないで Desire 油ゆ 断だん したい 油ゆ 断だん したくない Potential 油ゆ 断だん できる 油ゆ 断だん できない Passive 油ゆ 断だん される 油ゆ 断だん されない Causative 油ゆ 断だん させる 油ゆ 断だん させない Causative passive 油ゆ 断だん させられる 油ゆ 断だん させられない Volitional 油ゆ 断だん しよう Polite volitional 油ゆ 断だん しましょう Imperative 油ゆ 断だん しろ 油ゆ 断だん するな Conditional 油ゆ 断だん すれば 油ゆ 断だん しなければ Tara conditional 油ゆ 断だん したら 油ゆ 断だん しなかったら
Usage patterns 〈 人ひと 〉 の 油ゆ 断だん を 突つ く to take advantage of someone's momentary lack of vigilance
We exploited our opponent's lapse in guard and turned the game around.
油ゆ 断だん して 〈 動どう 詞し 〉 to do something as a result of letting one's guard down
I let my guard down and ended up falling.
〈 事こと 〉 に 油ゆ 断だん する to become careless about something
You shouldn't be careless about your health.
Expressions· 7 油ゆ 断だん 大たい 敵てき don't let your guard down; carelessness is the great enemy 油ゆ 断だん させる make someone let their guard down; lull someone into a false sense of security 油ゆ 断だん ならない treacherous; dangerous; untrustworthy; sneaky; cunning Show 2 more Show fewer 油ゆ 断だん も 隙すき もない one must be constantly on guard; one cannot be too careful Kanji 断 severance, decline, refuse Related words· 6 不注意 is a general term for carelessness or inattention, while 油断 specifically means letting one's guard down after a lapse in vigilance.
怠慢 implies negligence of duty through laziness or shirking responsibility, whereas 油断 is a momentary failure to stay alert rather than ongoing neglect.
軽率 describes acting rashly without thinking things through, while 油断 specifically describes relaxing one's guard and being caught unprepared.
油断する implies careless negligence that often causes a bad outcome, while 気を抜く just describes a temporary lapse in focus or intentional relaxing.
Show 2 more Show fewer 油断 refers to the state of letting one's guard down, while 不用意 can describe that state or an actual careless remark/action.
油断する describes letting one's guard down, which is the mental state that often leads to 抜かる , a resulting careless mistake.
Opposites 警戒 means being on guard and watchful, the opposite state of 油断 , which is letting one's guard down.
用心 means taking care and staying cautious, contrasting with 油断 , which means dropping one's caution.
油断する means to let one's guard down or become careless, the opposite of 気を付ける which means to stay alert and careful.
Written forms 油ゆ 断だん Usage 97%
Standard kanji spelling; the only written form.
ゆだん Usage 3%
Etymology The exact derivation is uncertain. The kanji 油 (oil) and 断 (cut off) are conventionally associated with the meaning of 'negligence', possibly from the idea of letting one's attention slip like oil.
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