Shindoi Meaning: しんどい vs Darui vs Kitsui, Three Kinds of Tough

Shindoi (しんどい) means 'exhausting', 'hard going' or 'I'm worn out', for the body or the mind. Darui (だるい) is a heavy, sluggish feeling, and kitsui (きつい) describes something tight, demanding or harsh. All three are everyday words for when things are tough.

What you need to know

Shindoi Meaning: しんどい vs Darui vs Kitsui, Three Kinds of Tough

If you ask a Japanese friend how their week was, you may hear shindoi with a long sigh. It is one of the most honest words in casual Japanese: it says that something is draining you, physically, emotionally or both. It has two close neighbours that learners mix up. Darui is the heavy, lazy-limbed feeling of a fever or a hot afternoon, and among young people it can also mean 'what a drag'. Kitsui starts from 'tight', like shoes or a schedule, and stretches to 'tough', 'strict' and 'strong'. This guide explains each word with natural examples, compares them side by side, shows polite versions for work and the clinic, and teaches the kind replies that make someone feel heard.

Shindoi: draining, hard going, worn out, in body or mind

Darui: heavy and sluggish; in slang, also 'what a drag'

Kitsui: tight, physically demanding, strict or harsh

Reply with muri shinaide ne, don't push yourself

Shindoi, darui and kitsui at a glance

These four lines show the core of each word. Shindoi is the overall 'this is wearing me out'. Darui is the heavy body. Kitsui is the demanding slope and, in its oldest sense, the shoes that pinch. Keep these pictures in mind and most examples will fall into place.

Four picture cards: a worn-out sigh, a person lying heavily in bed, a steep hill, and a pair of shoes that are too tight.
Worn out, heavy and sluggish, physically demanding, and tight: the core picture of each word.
JapaneseRomajiMeaning
しんどい…Shindoi...I'm worn out. / This is hard.
体がだるい。Karada ga darui.My body feels heavy.
坂がきつい。Saka ga kitsui.This slope is tough.
靴がきつい。Kutsu ga kitsui.These shoes are tight.

Shindoi: when something wears you out

Shindoi covers both physical and mental strain, and it often mixes the two. A long commute in a crowded train is shindoi. Caring for a sick family member while working is shindoi. A week of overtime, a hard relationship, a hot summer with no air conditioning: all shindoi. The word says less about one symptom and more about how heavy the whole thing feels.

It is generally said to have come from western Japan, especially Kansai, where it is still everywhere, and it is now used across the country in casual speech. It is usually written in hiragana. Its origin is not certain, so do not worry about a kanji for it.

Because it is honest and a little raw, shindoi works best with people you are close to, or with coworkers at your own level. With a manager, chotto shindoi desu softens it, and a more neutral sentence is often better still.

JapaneseRomajiMeaning
今週、ほんまにしんどいわ。Konshū, honma ni shindoi wa.This week is really wearing me out. (Kansai)
満員電車は毎日しんどい。Man'in densha wa mainichi shindoi.Packed trains every day are exhausting.
最近、気持ち的にしんどい。Saikin, kimochiteki ni shindoi.Lately it's hard emotionally.
階段で五階まではしんどいね。Kaidan de gokai made wa shindoi ne.Five floors by the stairs is a lot.
ちょっとしんどいです。Chotto shindoi desu.I'm a bit worn out. (softer, polite)

Honma ni is the Kansai way to say hontō ni, really. You will often hear shindoi with Kansai grammar like this, which shows where it feels most at home.

Darui: heavy, sluggish and 'what a drag'

Darui describes a body that feels heavy, slow and reluctant to move. It is the feeling you get with a fever, a hangover, after sleeping badly or on a humid afternoon. At a clinic, karada ga darui is a standard way to describe a symptom, and doctors understand it immediately.

In casual speech, especially among younger people, darui has a second life: it means a task is tedious or a drag, as in shukudai darui, homework is such a drag. In this sense it sounds lazy and a little sulky, so keep it for friends. Saying shigoto darui at the office would sound like you cannot be bothered to work.

JapaneseRomajiMeaning
熱があって、体がだるいです。Netsu ga atte, karada ga darui desu.I have a fever and feel heavy. (to a doctor)
寝不足で朝からだるい。Nebusoku de asa kara darui.I slept badly, so I've felt sluggish all day.
宿題、だるいなあ。Shukudai, darui nā.Homework is such a drag. (slang)
月曜日はだるい。Getsuyōbi wa darui.Mondays are a drag.

Kitsui: tight, demanding, strict and strong

Kitsui starts from a physical picture: something squeezes you. Shoes, a waistband, a lid that will not open. From there it stretches to anything that pushes hard on you: a steep slope, a heavy schedule, a strict teacher, harsh words, a strong smell or a strong drink.

When kitsui is about a task, it is close to shindoi but more specific: the task itself is demanding. Kono shigoto wa kitsui means the work is physically or mentally hard. When kitsui is about a person, kitsui hito or kitsui iikata, it means sharp or harsh, and it is a criticism, so be careful who hears it.

JapaneseRomajiMeaning
このズボン、ちょっときつい。Kono zubon, chotto kitsui.These trousers are a bit tight.
今月はスケジュールがきついです。Kongetsu wa sukejūru ga kitsui desu.My schedule is tight this month. (polite)
この仕事は体力的にきつい。Kono shigoto wa tairyokuteki ni kitsui.This job is physically demanding.
言い方がきついよ。Iikata ga kitsui yo.That's a harsh way to put it.
このお酒、きついね。Kono osake, kitsui ne.This drink is strong.

Side by side: which word fits?

Many situations allow more than one word, but each adds its own colour. The table helps you pick the one that says what you actually feel.

SituationNatural wordWhy
After a long, stressful weekshindoiOverall strain, body and mind
Fever, heavy limbsdaruiA heavy, sluggish body
Climbing a steep hillkitsui (or shindoi)The task itself is demanding
Shoes that pinchkitsuiLiterally tight
A boring chore you avoiddarui (slang)Feels like a drag
A sharp remarkkitsuiHarsh, hurts the listener
A painful family situationshindoi (or tsurai)Emotional strain

Tsukareta, I'm tired, is the neutral word underneath all of these. If you are not sure, tsukareta is never wrong; shindoi, darui and kitsui simply tell the listener more about what kind of tired you mean.

Answering when someone says shindoi

When a friend or coworker sighs shindoi, they usually want sympathy, not a solution. The kindest replies acknowledge the feeling and give permission to rest. Muri shinaide ne, don't push yourself, is the classic line, and a warm drink or an offer of help says the rest.

In a warm office kitchen with plants on the windowsill, a young man hands a tired older coworker a mug of tea as she rubs her neck and smiles.
A short reply, a warm drink: the kind answer to shindoi is sympathy first.
JapaneseRomajiMeaning
大丈夫?無理しないでね。Daijōbu? Muri shinaide ne.Are you okay? Don't push yourself.
お疲れさま。少し休んだら?Otsukaresama. Sukoshi yasundara?Good work. Why not rest a bit?
何か手伝おうか。Nanika tetsudaō ka.Shall I help with something?
しんどいね。よく頑張ってるよ。Shindoi ne. Yoku ganbatteru yo.That's hard. You're doing really well.
今週しんどい…Konshū shindoi...Coworker: This week is killing me...
わかる。今日は早く帰ろう。Wakaru. Kyō wa hayaku kaerō.You: I know. Let's go home early today.

Mini dialogue: describing darui at a clinic

A clinic visit is where darui stops being slang and becomes a precise, useful word. Doctors in Japan often ask how long a symptom has lasted and whether you have a fever, so short, clear answers help. Here a patient explains how she feels; notice that she uses polite desu forms and the explanatory n desu, which sounds natural when you describe your own condition.

JapaneseRomajiMeaning
今日はどうされましたか。Kyō wa dō saremashita ka.Doctor: What brings you in today?
昨日から体がだるいんです。Kinō kara karada ga darui n desu.Patient: I've felt heavy and sluggish since yesterday.
熱はありますか。Netsu wa arimasu ka.Doctor: Do you have a fever?
三十七度八分です。Sanjūnana do hachibu desu.Patient: It's 37.8 degrees.
食欲はどうですか。Shokuyoku wa dō desu ka.Doctor: How is your appetite?
あまりないです。歩くのもしんどくて。Amari nai desu. Aruku no mo shindokute.Patient: Not much. Even walking is hard.

Temperatures in Japan are given in Celsius, and the decimal is often read with bu: sanjūnana do hachibu, or more simply sanjūnana ten hachi do. Both are understood.

Politeness, and common learner mistakes

At work, complaining directly can sound unprofessional, so people often describe the situation rather than their feelings. Instead of shindoi, a coworker might say that the workload is a little heavy, or ask whether a deadline could move. At a clinic, on the other hand, being direct is exactly right: the doctor needs to know how your body feels.

JapaneseRomajiMeaning
今週は少し負担が大きいです。Konshū wa sukoshi futan ga ōkii desu.The workload is a little heavy this week.
締め切りを少し延ばせますか。Shimekiri o sukoshi nobasemasu ka.Could the deadline move a little?
朝から体がだるいんです。Asa kara karada ga darui n desu.I've felt heavy since this morning. (to a doctor)
息が苦しくて、坂がきついです。Iki ga kurushikute, saka ga kitsui desu.I get breathless, so slopes are hard. (to a doctor)
  • Using darui at work about your job. Shigoto darui sounds like you are lazy, not tired. Use tsukareta or describe the workload.
  • Calling a person kitsui casually. Kitsui hito means someone harsh or difficult, and it can get back to them.
  • Using shindoi with a client. It is honest and casual; in formal situations, describe the problem or say taichō ga sukoshi warui, I'm not feeling well.
  • Thinking kitsui only means difficult. For clothes, it simply means tight: kitsui desu ka? is a normal question in a shop.
  • Answering shindoi with advice straight away. Acknowledge the feeling first, then offer help.

Feel the difference with AI Sensei and Mocchi

Start in Mocchi with: 'Give me six situations and ask whether shindoi, darui or kitsui fits best.' Mocchi explains each answer in plain English and keeps track of the pair you mix up most, so your next /review starts there.

Then say it for real. Ask AI Sensei, perhaps Sakura-sensei, to play a coworker at the end of a long week. Tell her how you feel with the right word, and practise the kind replies when she says shindoi back. The session report lists your corrections and the vocabulary you used.

Key points

A practical way to improve

Practise the three words with your own week. First, say one true sentence for each: shigoto ga shindoi, netsu de karada ga darui, saka ga kitsui. Second, practise saying them politely to a coworker and to a doctor: chotto shindoi desu, karada ga darui n desu. Third, practise replying when someone else says shindoi: daijōbu? muri shinaide ne, and sukoshi yasundara?. Ask AI Sensei to play a tired coworker, and afterwards look at the session report for your corrections. You can also ask Mocchi, Unihongo's study assistant, to quiz you on darui versus kitsui; Mocchi remembers which situations you got wrong.

  1. 1

    Choose one clear goal

    Focus each session on a situation or skill you can actually use.

  2. 2

    Practice actively

    Say complete answers aloud instead of only reading or recognizing Japanese.

  3. 3

    Review and repeat

    Keep useful corrections and revisit the same skill until it feels natural.

FAQ

Frequently asked questions

What does shindoi mean in Japanese?

Shindoi (しんどい) means exhausting, draining or hard to bear. You can use it for physical tiredness, such as after a long shift, and for emotional strain, such as a difficult situation at work. It is casual; with coworkers chotto shindoi desu is a softer, politer way to say it.

Is shindoi Kansai dialect?

Shindoi is often described as originally a word from western Japan, especially the Kansai region, and it is still very common there. Today it is heard all over Japan in casual speech, on television and online, so learners can use it anywhere with friends.

What is the difference between shindoi, darui and kitsui?

Shindoi is general exhaustion or strain: this is wearing me out. Darui is a heavy, sluggish body, as with a fever or after too little sleep, and in slang it also means 'what a drag'. Kitsui first means tight, and then physically demanding, strict or harsh.

Can I say darui at a Japanese clinic?

Yes. Karada ga darui desu, 'my body feels heavy and sluggish', is a normal way to describe a symptom to a doctor, and it is often paired with netsu (fever) or seki (cough). The slang meaning 'what a drag' is for friends only.

Talk about a tough week in natural Japanese

Tell AI Sensei how your week really went, with shindoi, darui and kitsui in the right places, practise kind replies, and get a session report with corrections afterwards.