Meaning
怖 means fear, being scared, or something frightening. It captures the gut-level feeling of dread — the psychological state of being afraid, the quality of something menacing, the unease that grips you before something dangerous. In everyday Japanese, it works equally in casual speech (こわい, "scary") and formal contexts (恐怖, "terror").
The kanji has two components. On the left, 忄 — a compressed form of 心 (heart/mind) — marks this as an emotional kanji. On the right sits 布, meaning "cloth" or "to spread." Together they suggest a feeling that radiates outward from the heart, invading the whole body. Real fear works exactly that way: your pulse quickens, your hands tremble, and the sensation takes over from the inside out.
怖 has 8 strokes and was added to the jōyō kanji list in the 2010 revision. No elementary school grade is assigned — it's a secondary-level kanji — but it turns up constantly in daily life. Its JLPT level is N2.
Readings
On'yomi (音読み) — Chinese-derived readings
怖's on'yomi is フ (Fu), rooted in historical Chinese pronunciation. This reading never stands alone; it only appears inside compound words. It anchors the formal vocabulary of terror and dread.
- 恐怖 (kyōfu) — fear, terror, dread (one of the most common compounds)
- 恐怖症 (kyōfushō) — phobia
- 恐怖感 (kyōfukan) — a sense of terror
- 恐怖政治 (kyōfu seiji) — rule by terror
フ only appears in multi-kanji compounds — never in isolation. You'll encounter it most in news, formal writing, and academic contexts, where Sino-Japanese vocabulary dominates.
Kun'yomi (訓読み) — Native Japanese readings
The kun'yomi readings are こわ.い (kowa-i) and こわ.がる (kowa-ga-ru). These native readings dominate everyday speech. The dot (.) marks where the kanji reading ends and the okurigana begins — the hiragana suffix that shifts with conjugation.
- 怖い (kowai) — scary, frightening, afraid (i-adjective)
- 怖がる (kowagaru) — to be afraid of; used when describing someone else's visible fear
- 怖さ (kowasa) — scariness, the quality of being frightening
- 怖け (ojike) — timidity, a sudden fit of fear
- 怖けづく (ojikedzuku) — to lose one's nerve, to be seized by fear
こわい can also be written 恐い in some contexts, though 怖い is the standard modern form. It inflects regularly: こわくない (not scary), こわかった (was scary), こわくて (scary, and...).
Common Words & Compounds
怖 appears in everything from casual adjectives to formal compound nouns. Here are the key words for N2 learners, grouped by type.
Adjectives and Basic Forms
- 怖い (kowai) — scary, frightening
- 怖さ (kowasa) — scariness, frightening quality
- 怖がり (kowagari) — a scaredy-cat, someone who frightens easily
Verbs
- 怖がる (kowagaru) — to be afraid of (third person or observable fear)
- 怖けづく (ojikedzuku) — to lose one's nerve, to flinch in fear
Formal Compounds with 恐怖
- 恐怖 (kyōfu) — fear, terror, dread
- 恐怖症 (kyōfushō) — phobia (e.g., 高所恐怖症 = acrophobia)
- 恐怖感 (kyōfukan) — a sense of terror
- 恐怖政治 (kyōfu seiji) — rule by terror
- 恐怖映画 (kyōfu eiga) — horror film
Idiomatic and Extended Uses
- 怖い顔 (kowai kao) — a scary or stern face
- 怖け (ojike) — a sudden fit of fear, timidity
- 高所恐怖症 (kōsho kyōfushō) — acrophobia, fear of heights
Example Sentences
この映画はとても怖い。
Kono eiga wa totemo kowai.
This movie is very scary.
彼女は暗闇を怖がる。
Kanojo wa kurayami wo kowagaru.
She is afraid of the dark.
子供のころ、お化けが怖かった。
Kodomo no koro, obake ga kowakatta.
When I was a child, I was afraid of ghosts.
地震は本当に怖い経験だった。
Jishin wa hontō ni kowai keiken datta.
The earthquake was a truly frightening experience.
彼は怖い顔をしているが、実は優しい人だ。
Kare wa kowai kao wo shite iru ga, jitsu wa yasashii hito da.
He has a scary face, but he is actually a kind person.
恐怖感が全身を包んだ。
Kyōfukan ga zenshin wo tsutsunda.
A sense of terror enveloped my entire body.
高いところが怖くて、飛行機に乗れない。
Takai tokoro ga kowakute, hikōki ni norenai.
I'm afraid of heights and cannot get on an airplane.
怖けづかずに挑戦することが大切だ。
Ojikedzukazu ni chōsen suru koto ga taisetsu da.
Taking on challenges without losing your nerve matters more than it sounds.
あの先生は怖いと評判だが、授業はわかりやすい。
Ano sensei wa kowai to hyōban da ga, jugyō wa wakariyasui.
That teacher has a reputation for being scary, but the lessons are easy to follow.
恐怖症は適切な治療で克服できる。
Kyōfushō wa tekisetsu na chiryō de kokufuku dekiru.
Phobias can be overcome with the right treatment.
Memory Tip
Picture your heart (忄) as a piece of cloth (布) stretched tight across your chest. That's what real fear does — it starts at the center and spreads outward (布 also means "to spread") until your whole body is gripped by it.
There's also a sound shortcut: 布 rhymes loosely with "boo," the classic scare word. A heart that goes "boo" — that's 怖. For the kun'yomi, notice how こわい (kowai) sounds like "cower." Picture yourself cowering in fear, and the reading anchors itself.