How to Say “I Feel Bad” in Japanese

気分が悪いです
kibun ga warui desu
In Japanese, "I feel bad" is expressed as 気分が悪いです (kibun ga warui desu).
気分が悪いです is primarily used to state that you are feeling physically unwell or sick. In a medical or physical context, it specifically describes feeling nauseous or unwell. However, the phrase can also be used to indicate that you are in a bad mood or feeling mentally bad.

Which one should you use?

While 気分が悪いです can refer to a bad mood, it is the preferred way to describe feeling physically unwell. If you specifically mean you feel nauseated, have an uneasy sensation or feel disgusted, you may use 気持ち悪い.

How does it change in a sentence?

You can make the phrase informal by dropping the desu at the end, resulting in 気分が悪い. If you want to express that you have suddenly started feeling unwell, you can use the past tense form 気分が悪くなりました.

How do you pronounce it?

kibun ga warui desu

Did you know?

  • In very casual speech, 気持ち悪い is often shortened to kimoi, a slang term used primarily by young people to say something is 'gross' or 'creepy'.
  • The word 気分 (kibun) is a loanword from the Chinese 氣氛, which originally referred to the 'atmosphere' of a place rather than a person's internal feeling.
  • While 気分が悪いです refers to physical or mental state, Japanese speakers use the word 具合 (guai) when describing a malfunction in a machine, meaning they use a similar concept for both humans and electronics.

Examples in context

  • 気分が悪いんだ。
    I feel bad.
  • いいよ、ただ気分が悪いだけ。
    No, it's okay, I just feel bad.
  • 気分が悪いです。少し休憩したいです。
    I feel bad. I want to take a short break.
  • 気分が悪いです。
    Kibun ga warui desu.
    I feel unwell.
  • 少し気分が悪いです。
    Sukoshi kibun ga warui desu.
    I feel a little sick.

Example conversation

At a cafe, Himari looks pale and tells Hiroto she is sick.

  1. 陽葵 Himari

    すみません、少し気分が悪いです。
    Sumimasen, sukoshi kibun ga warui desu.
    Excuse me, I feel a little unwell.
  2. 大翔 Hiroto

    大丈夫ですか?顔色が悪いですよ。
    Daijoubu desu ka? Kaoiro ga warui desu yo.
    Are you okay? You look pale.
  3. 陽葵 Himari

    はい、少し休みます。
    Hai, sukoshi yasumimasu.
    Yes, I will rest a little.
  4. 大翔 Hiroto

    無理をしないでくださいね。
    Muri o shinaide kudasai ne.
    Please don't push yourself.
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Tony Charlie
Tony CharlieHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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