Kowai: the everyday word for scared
Kowai, 怖い, is an i-adjective, and it works in two directions at once. Kowai can mean I'm scared, and it can mean something is scary. Japanese usually leaves the subject unsaid, so context decides: said while watching a horror film, kowai means I'm scared; said about a film, kono eiga, kowai yo means this film is scary.
Because it is an adjective, it conjugates like one. The past is kowakatta, it was scary or I was scared, and the negative is kowakunai, not scary. Add desu to any of these to make them polite.
In casual speech, especially among younger speakers, kowai often shrinks to kowa! or kowaa as a quick reaction. You will also hear intensifiers such as sugoku, mechakucha and the slangy meccha.
| Japanese | Romaji | Meaning |
|---|---|---|
| 怖い。 | Kowai. | I'm scared. / It's scary. (casual) |
| 怖いです。 | Kowai desu. | I'm scared. (polite) |
| こわっ! | Kowa! | Yikes! (casual reaction) |
| 怖かった。 | Kowakatta. | That was scary. |
| 全然怖くなかった。 | Zenzen kowakunakatta. | It wasn't scary at all. |
| めっちゃ怖い。 | Meccha kowai. | It's really scary. (slang) |
| ちょっと怖いです。 | Chotto kowai desu. | I'm a little scared. |
Saying what you are afraid of
To name a fear, mark the scary thing with ga: kumo ga kowai, I'm scared of spiders. For an action, turn the verb into a noun with no: hikōki ni noru no ga kowai, I'm scared of flying. This is the same ga that appears with suki and kirai.
For milder dislikes, many people prefer nigate, not good with, or dame, can't handle. They sound less intense than kowai and are common when turning down a horror film or a high viewpoint. Formal words ending in kyōfushō, phobia, exist, but in conversation they can sound clinical.
When talking about other people's fear, Japanese usually switches to kowagaru, to act scared or seem scared. Kodomo ga kaminari o kowagatte iru means the child is scared of the thunder. Saying kare wa kowai would instead mean he is scary.
| Japanese | Romaji | Meaning |
|---|---|---|
| 高いところが怖いです。 | Takai tokoro ga kowai desu. | I'm afraid of heights. |
| 暗いところが苦手です。 | Kurai tokoro ga nigate desu. | I'm not good with the dark. |
| 飛行機に乗るのが怖い。 | Hikōki ni noru no ga kowai. | I'm scared of flying. |
| 虫がだめなんです。 | Mushi ga dame nan desu. | I can't handle bugs. |
| 犬を怖がっています。 | Inu o kowagatte imasu. | They're scared of the dog. |
| 怖がらなくて大丈夫だよ。 | Kowagaranakute daijōbu da yo. | There's no need to be scared. |
Bikkuri shita: startled, not scared
When something makes you jump, a door slamming or a friend appearing behind you, the natural word is bikkuri shita, I was startled. Bikkuri is about surprise and shock in the moment, and it can be positive, as when a gift surprises you. Kowai, by contrast, is fear that stays with you.
Odoroita means the same thing in slightly more neutral language, and it is common in writing and polite speech. The expression zotto suru describes a shiver down the spine, often at a creepy story or a close call you only realise afterwards. Dokidoki describes a pounding heart, from fear, excitement or romance.
| Japanese | Romaji | Meaning |
|---|---|---|
| びっくりした! | Bikkuri shita! | You scared me! / That startled me! |
| もう、びっくりさせないでよ。 | Mō, bikkuri sasenaide yo. | Hey, don't make me jump like that. |
| 大きな音に驚きました。 | Ōki na oto ni odorokimashita. | The loud noise startled me. |
| その話、ぞっとする。 | Sono hanashi, zotto suru. | That story gives me the chills. |
| 心臓がドキドキしてる。 | Shinzō ga dokidoki shiteru. | My heart is pounding. |
| 危なかった! | Abunakatta! | That was close! |
A common learner slip is to say kowakatta when someone jumps out at you as a joke. Bikkuri shita is what a Japanese speaker would usually say, because it was a shock rather than real fear.
Fuan, shinpai and kinchō: anxious, worried, nervous
Much of what English calls being scared is really worry about something that has not happened yet. Japanese handles that with fuan, a feeling of unease or anxiety, and shinpai, worry or concern. Fuan is more about your own inner state; shinpai is often directed at a specific thing or person.
Kinchō is different again: it is the tension or nerves you feel before performing, such as an exam, a job interview or speaking Japanese in public. Kinchō shite imasu is extremely common and sounds modest rather than weak. For a lighter version before a big moment, people also say dokidoki suru.
| Word | Feeling | Typical sentence |
|---|---|---|
| 怖い kowai | Fear of something frightening | Ano inu, kowai. That dog is scary. |
| 不安 fuan | Unease about the future | Ashita no shiken ga fuan desu. I'm anxious about tomorrow's exam. |
| 心配 shinpai | Worry about a thing or person | Haha no kenkō ga shinpai desu. I'm worried about my mum's health. |
| 緊張 kinchō | Nerves before performing | Mensetsu de kinchō shimashita. I got nervous at the interview. |
| びっくり bikkuri | Sudden surprise or shock | Kyū ni denki ga kiete bikkuri shita. The lights suddenly went out and I jumped. |
Horror films, haunted houses and ghost stories
Horror is a big genre in Japan, and summer is traditionally the season for kaidan, ghost stories, because a chill is supposed to cool you down. Amusement parks often have obakeyashiki, haunted houses, and friends like to tease each other about who is the most scared.
The adjective kowai is at the centre of all of this, but you will also hear kimochi warui, creepy or gross, and bukimi, eerie. Kowagari is a noun for someone who scares easily, a scaredy-cat, and it is a gentle, teasing word among friends.
| Japanese | Romaji | Meaning |
|---|---|---|
| ホラー映画は苦手です。 | Horā eiga wa nigate desu. | I'm not good with horror films. |
| お化け屋敷、一緒に行こうよ。 | Obakeyashiki, issho ni ikō yo. | Let's go to the haunted house together. |
| 怖くて夜眠れなかった。 | Kowakute yoru nemurenakatta. | I was so scared I couldn't sleep last night. |
| 私、怖がりなんです。 | Watashi, kowagari nan desu. | I scare easily. |
| なんか不気味だね。 | Nanka bukimi da ne. | It's kind of eerie, isn't it? |
| 恐ろしい話ですね。 | Osoroshii hanashi desu ne. | What a terrifying story. |
During and after an earthquake
Anyone living in or visiting Japan is likely to feel at least a small earthquake. In the moment, people often say yureteru, it's shaking, or ōkii, it's big. Afterwards, kowakatta is the normal way to share what you felt, often followed by a question about whether everyone is all right.
Lingering worry about aftershocks is fuan rather than kowai. If you want to understand the alerts and announcements themselves, there is a separate guide to Japanese earthquake alerts; the lines here are for talking about how you feel and checking on others.
| Japanese | Romaji | Meaning |
|---|---|---|
| 揺れてる! | Yureteru! | It's shaking! |
| 今の地震、怖かったですね。 | Ima no jishin, kowakatta desu ne. | That earthquake just now was scary, wasn't it? |
| 大丈夫でしたか。 | Daijōbu deshita ka. | Were you all right? |
| 余震が不安です。 | Yoshin ga fuan desu. | I'm worried about aftershocks. |
| 地震に慣れていないので、怖いです。 | Jishin ni narete inai node, kowai desu. | I'm not used to earthquakes, so I'm scared. |
| どうすればいいですか。 | Dō sureba ii desu ka. | What should I do? |
Telling people you are not used to earthquakes is useful. Japanese speakers are usually very willing to explain what to do and to reassure you that a small quake is nothing unusual.
Kowai, kawaii and other common mistakes
The most famous slip is mixing kowai, scary, with kawaii, cute. Kowai starts with ko and has three short beats: ko-wa-i. Kawaii starts with ka and ends in a long ii: ka-wa-i-i. Telling someone their baby is kowai is a mistake you only want to make once.
- Saying kowai before a presentation. Kinchō shite imasu is the natural choice for nerves.
- Saying kowakatta when someone surprises you. Bikkuri shita fits a sudden shock better.
- Using kowai for someone else's feeling. Kanojo wa kowai means she is scary; use kowagatte iru to say she is scared.
- Using osoroshii in casual chat. It can sound theatrical; kowai is the everyday word.
- Forgetting ga. It is kumo ga kowai, not kumo o kowai, when you state what you fear.
- Using kowai for a strict person too casually. Ano sensei, kowai means that teacher is scary or strict, which is fine among friends but could be overheard.

