Translation guide
Describes a person, attitude, or effort that is lazy, careless, or lacking enthusiasm and determination. Japanese expresses this through adjectives, verbs, and descriptive phrases focusing on laziness, half-heartedness, or lack of seriousness.
Describing a person or their behavior as lazy, sluggish, or unmotivated, often in a general sense.
A somewhat formal adjective meaning 'lazy' or 'indolent'. It describes a person's character or lifestyle as habitually lazy.
彼は怠惰な生活を送っている。
He leads a lackadaisical life.
An adjective meaning 'slovenly', 'lazy', or 'undisciplined'. It often implies a lack of care in appearance or habits, and can be used for a lackadaisical attitude.
彼のだらしない態度には呆れる。
I'm amazed at his lackadaisical attitude.
A colloquial adjective meaning 'lazy' or 'idle', often used for someone who lounges around and avoids work. It has a slightly humorous or critical tone.
週末はぐうたらな生活を楽しんだ。
I enjoyed a lackadaisical lifestyle over the weekend.
Literally 'of a lazy person', this phrase describes someone who is inherently lazy. It can be used attributively to describe a lackadaisical person.
怠け者の学生は宿題をやらない。
A lackadaisical student doesn't do their homework.
Describing an action or attitude that is done without proper care, interest, or effort, often resulting in poor quality.
An adjective meaning 'half-hearted', 'irresponsible', or 'sloppy'. It implies a lack of thoroughness or commitment, fitting for lackadaisical work or responses.
彼のいい加減な仕事ぶりには困ったものだ。
His lackadaisical work is a problem.
Literally 'without motivation', this phrase describes a lack of drive or enthusiasm. It is commonly used for a lackadaisical attitude towards tasks.
やる気のない返事をされた。
I got a lackadaisical reply.
An adjective meaning 'negligent' or 'careless', often implying a 'throwaway' attitude. It suggests giving up on doing something properly.
投げやりな態度で仕事をすると失敗する。
If you work with a lackadaisical attitude, you'll fail.
Means 'half-baked' or 'superficial'. It describes efforts or knowledge that are insufficient and lackadaisical.
生半可な準備では成功しない。
You won't succeed with lackadaisical preparation.
Describing a lack of proper attention or seriousness, often leading to mistakes or a casual disregard.
An adjective meaning 'careless' or 'inattentive'. It focuses on the lack of attention rather than laziness, suitable for lackadaisical mistakes.
不注意な運転は事故のもとだ。
Lackadaisical driving causes accidents.
Means 'rash' or 'thoughtless'. It implies acting without proper consideration, which can be seen as lackadaisical in decision-making.
軽率な発言で彼を怒らせた。
His lackadaisical remark angered him.
An adjective meaning 'rough' or 'careless', often used for handling things in a sloppy, lackadaisical manner.
ぞんざいな扱いで商品が壊れた。
The product broke due to lackadaisical handling.
怠惰 (taida) is formal and describes a deep-seated laziness. だらしない (darashinai) is more about sloppiness in appearance or habits. いい加減 (iikagen) focuses on half-heartedness and irresponsibility in actions. Choose based on whether you emphasize laziness, slovenliness, or lack of commitment.
There is no single Japanese word that perfectly matches 'lackadaisical'. Using a direct translation like 怠惰な may sound too formal or literary in casual speech. In conversation, やる気がない or だらしない are often more natural.