Translation guide
Describes someone who is inattentive, sloppy, or prone to mistakes. Japanese has several words that capture different nuances of carelessness, from general clumsiness to reckless negligence.
To describe a person who often makes mistakes due to lack of attention or care, in everyday situations.
A common, neutral way to say 'careless person'. It implies a tendency to make small mistakes or be forgetful.
彼はそそっかしい人だから、よく鍵を忘れる。
He's a careless person, so he often forgets his keys.
Refers to someone who is absent-minded or makes careless mistakes. Often used in a light-hearted, self-deprecating way.
私はうっかり者で、よく電車を乗り間違える。
I'm a careless person and often take the wrong train.
Literally 'inattentive person'. Slightly more formal, often used when carelessness leads to accidents or problems.
不注意な人が事故を起こした。
A careless person caused the accident.
To describe someone whose carelessness is severe, showing a lack of responsibility or regard for consequences.
Implies thoughtlessness or rashness. Used when someone acts without considering the outcome.
軽率な人がそんな大事な秘密を漏らした。
A careless person leaked such an important secret.
Means 'irresponsible person'. Stronger than just careless; implies a lack of accountability.
無責任な人に仕事を任せられない。
I can't entrust work to a careless (irresponsible) person.
To describe someone who is physically careless, often dropping things or bumping into objects.
Colloquial term for a clumsy or blundering person. Often used affectionately for someone who messes up.
彼女はドジな人で、いつも何かをこぼしている。
She's a careless person, always spilling something.
Describes a scatterbrained, careless person who makes silly mistakes. Very casual and often endearing.
うちの母はおっちょこちょいで、よく砂糖と塩を間違える。
My mom is a careless person and often mixes up sugar and salt.
To describe someone who does a poor job due to lack of thoroughness or attention to detail.
Means a person who is half-hearted, sloppy, or unreliable. Often used for work or promises.
いい加減な人が作った書類はミスだらけだ。
Documents made by a careless person are full of mistakes.
Describes a person who is lazy and sloppy, often neglecting details or tidiness. More about habitual untidiness than momentary carelessness.
ずぼらな人は部屋を片付けない。
A careless (sloppy) person doesn't tidy their room.
そそっかしい describes a personality trait of being scatterbrained. うっかり refers to a momentary lapse or absent-minded mistake. 不注意 is more formal and often used in contexts of negligence leading to accidents.
そそっかしい彼は、また携帯を忘れた。
Careless him forgot his phone again.
うっかりして電車を降り過ごした。
I carelessly missed my stop.
不注意による事故が増えている。
Accidents due to carelessness are increasing.
The direct translation '不注意な人' is grammatically correct but can sound stiff or accusatory in casual conversation. Use more natural terms like そそっかしい人 or うっかり者 for everyday carelessness.