Translation guide
The English adverb 'recklessly' describes doing something without thinking about the dangers or consequences, often in a careless or impulsive way. In Japanese, there is no single perfect equivalent; instead, different words and phrases capture specific nuances like rashness, lack of caution, or disregard for safety.
Describes doing something dangerous without considering the risks, often impulsively.
The most common and direct translation for 'recklessly'. It means acting without a plan or consideration of danger, often implying foolishness.
彼は無謀にも嵐の中を出かけた。
He recklessly went out into the storm.
Reckless driving causes accidents.
Literally 'without seeing the other side', meaning acting recklessly without thinking ahead. Often used for daring or foolhardy behavior.
向こう見ずな若者が崖から飛び込んだ。
A reckless youth jumped off the cliff.
A four-character idiom meaning 'rushing forward like a wild boar'. It describes headstrong, reckless action without regard for obstacles. Somewhat literary.
彼は猪突猛進に事業を拡大した。
He recklessly expanded his business, charging ahead.
Focuses on lack of care or attention, often leading to mistakes or accidents.
Adverb meaning 'carelessly' or 'absentmindedly'. It implies a momentary lapse of attention rather than deliberate recklessness. Often used for forgetting or making small mistakes.
うっかりして電車を乗り過ごした。
I carelessly missed my train stop.
うっかり秘密を話してしまった。
I recklessly blurted out the secret.
Means 'inattentively' or 'carelessly'. More formal than うっかり, and can be used for negligence.
彼は不注意に書類をなくした。
He carelessly lost the documents.
Describes acting in an uncontrolled, excessive manner, often with a sense of abandon.
Colloquial adverb meaning 'recklessly', 'wildly', or 'messily'. It implies doing something in a disorderly or extreme way.
彼はめちゃくちゃにお金を使った。
He spent money recklessly.
めちゃくちゃに走るな。
Don't run around wildly.
Means 'in desperation' or 'recklessly out of frustration'. Used when someone acts recklessly because they feel they have nothing to lose.
やけくそになって会社を辞めた。
I recklessly quit my job out of frustration.
Specifically for reckless speed, often in driving or movement.
Means 'at a furious speed'. Commonly used for reckless driving or moving very fast.
彼は猛スピードでバイクを飛ばした。
He recklessly sped on his motorcycle.
Noun/suru-verb meaning 'reckless driving' or 'running wild'. Often used for vehicles or people acting out of control.
暴走族が夜中に暴走した。
A biker gang drove recklessly at night.
English 'recklessly' covers a wide range of situations. Using a single Japanese word in all contexts can sound unnatural. Choose based on the specific nuance: danger (無謀に), carelessness (うっかり), wildness (めちゃくちゃに), or speed (猛スピードで).
Both mean 'recklessly', but 無謀に emphasizes lack of planning or consideration of danger, while 向こう見ずに focuses on not thinking about future consequences. 向こう見ずに often describes a person's character as foolhardy.