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驚愕する

B1 verb #8,000 most common 13 min read

驚愕する

kyōgaku suru Top 8,000

Practice it Examples Notes & Tips 驚愕する in 30 Seconds

Explanation 驚愕する in your Level:

At the A1 level, '驚愕する' is a very difficult word. You don't need to use it yourself yet. Instead, you should learn the word '驚く' (odoroku), which means 'to be surprised'. Think of '驚愕する' as a 'Super Surprised' word that grown-ups use in news or books. If you see it, just remember it means someone is very, very shocked. In English, it's like the difference between saying 'I am surprised' and 'I am astonished'. At this stage, focus on the kanji '驚' (surprise) because it appears in many words. You might see this word on a TV news screen with a big red background, which tells you something important and shocking happened. Don't worry about the grammar of it yet; just know the 'feeling' of the word.

At the A2 level, you might start seeing '驚愕' in simple news articles or reading materials. It is a 'suru-verb', which means you add 'suru' to make it an action. You should know that it is much stronger than '驚く'. While '驚く' is used when a friend says 'Hello!' suddenly, '驚愕する' is used when you hear something unbelievable. For example, 'He won the lottery!' might make people '驚愕する'. You should also notice the particle 'に' (ni) often comes before it. This 'ni' points to the thing that surprised you. Try to recognize the word when you hear it in anime or movies during a big plot twist. It sounds more 'serious' and 'cool' than the basic words you learned in A1.

At the B1 level, you are expected to understand and occasionally use '驚愕する'. This is the target level for this word. You should understand its nuance: it's formal, intense, and often used in writing. You should be able to distinguish it from '驚く' (daily surprise) and '呆然とする' (being dazed). In your own writing, you can use it to describe reactions to major events or shocking facts in a formal essay. For example, 'I was astonished by the environmental damage' would be '環境破壊のひどさに驚愕した'. You should also be familiar with the form '驚愕の...' (astonishing...), which is used as an adjective. This level is about moving beyond simple emotions to more precise, professional vocabulary.

At the B2 level, you should use '驚愕する' naturally in formal discussions and advanced writing. You should understand the 'causative' form '驚愕させる' (to astonish someone) and how it is used in news headlines like '日本中を驚愕させた' (Stunned all of Japan). You should also be able to use it in the 'te-form' to connect reasons and results, such as '驚愕して、何も言えなかった' (I was so astonished I couldn't say anything). At this level, you should also be aware of synonyms like '仰天する' and know that '驚愕' is more formal. You might encounter this word in business reports or literature, and you should be comfortable with the kanji 驚愕 without needing furigana.

At the C1 level, you should have a deep grasp of the stylistic choices involving '驚愕する'. You understand that it carries a specific 'kango' weight that 'odoroku' lacks. You can use it to create a specific tone in your writing—one of gravitas or journalistic objectivity. You should also understand its use in historical and philosophical contexts, where '驚愕' might describe a paradigm shift in human thought. You are also expected to know related idioms like '驚愕を禁じ得ない' (cannot help but be astonished), which is a very formal and sophisticated way to express shock. Your understanding extends to the subtle differences between '驚愕', '震撼', and '震驚', choosing the perfect word for the specific type of shock being described.

At the C2 level, '驚愕する' is a word you master in all its nuances. You can analyze its use in classical-modern literature and understand how authors use it to manipulate the reader's emotional response. You are aware of the word's history and its kanji components in detail. You can use the word in high-level debates, academic papers, and creative writing to convey complex emotional states. You also understand how the word's frequency and usage have changed in modern digital media (like YouTube clickbait) vs. traditional media. At this level, you don't just know the word; you know its place in the entire ecosystem of the Japanese language and can use it with the precision of a native speaker.

Practice it Examples Notes & Tips

驚愕する in 30 Seconds

High-intensity verb for deep shock or amazement.
Formal register; common in news, books, and reports.
Stronger and more serious than the basic 'odoroku'.
Often used as 'kyōgaku no' to mean 'astonishing'.

The Japanese verb 驚愕する (kyōgaku suru) represents a state of being profoundly astonished, startled, or appalled. Unlike the more common and general-purpose verb 驚く (odoroku), which can cover everything from a small surprise to a big one, 驚愕する is reserved for moments of extreme impact. It is a formal, kango-based word (Chinese-origin) that carries a heavy, serious weight. When you use this word, you are suggesting that the level of surprise was so high that it caused a physical or psychological shock. It is often used in news reporting, literature, and formal discussions to describe reactions to monumental events, scandalous revelations, or unbelievable feats of skill or cruelty. In the landscape of Japanese emotions, this word sits at the peak of the 'surprise' spectrum, often involving a sense of disbelief or being overwhelmed by the magnitude of the news.

Register: Formal / Literary / Journalistic. Not typically used in casual daily conversation unless for dramatic effect.
Intensity: Very High. It implies a 'jaw-dropping' or 'earth-shattering' level of shock.
Kanji Breakdown: 驚 (Kyo/Odoroku) meaning surprise or wonder, and 愕 (Gaku) meaning to be startled or alarmed.

そのニュースを聞いて、国民は驚愕した。(Upon hearing the news, the citizens were astonished.)

To understand when to use 驚愕する, imagine a scenario where a simple 'wow' isn't enough. If you find out your neighbor is actually a secret billionaire, you might 驚く. However, if you find out your neighbor has been building a space rocket in their basement for twenty years, you would 驚愕する. The word suggests a disruption of one's sense of reality. It is frequently paired with nouns like 事実 (jijitsu - fact), 真実 (shinjitsu - truth), or ニュース (nyūsu - news). In a professional setting, a CEO might say the company was 'astonished' (驚愕した) by a sudden market crash, emphasizing the gravity of the situation. It is also common in mystery novels when a detective reveals a culprit that no one suspected, leaving the characters in a state of 驚愕.

最新の技術革新に、世界中の研究者が驚愕している。(Researchers around the world are amazed by the latest technological innovation.)

In terms of grammar, 驚愕 is a noun that becomes a verb by adding する. It usually takes the particle に to indicate the source of the surprise (e.g., [Source] に驚愕する). It can also be used as an adjectival noun with the particle の, such as 驚愕の事実 (a shocking fact). Because it is a kango word, it feels more objective and detached than 驚く, making it ideal for written reports. While 驚く focuses on the internal feeling of the person, 驚愕する often focuses on the magnitude of the external event that caused the reaction. If you are writing a formal essay or a news article, this is the preferred term for 'shock' or 'astonishment'.

Emotional Nuance: Can be positive (amazement at skill) or negative (appalled by a crime), but always intense.

犯人の冷酷な手口に、捜査員は驚愕した。(The investigators were appalled by the killer's cold-blooded methods.)

Finally, let's look at the etymology of the kanji. 驚 (kyō) is composed of 'horse' (馬) and 'respect/warning' (敬), suggesting a horse that is startled or rearing up in alarm. 愕 (gaku) includes the 'heart' radical (忄) and a phonetic component meaning 'to speak loudly' or 'startle'. Together, they paint a picture of a heart that is so startled it jumps, much like a frightened horse. This visual history reinforces why 驚愕する is used for visceral, deep-seated shock rather than a simple 'oh!' moment. When you see this word in a Japanese text, prepare for something significant to happen next.

Using 驚愕する correctly requires an understanding of its syntactic environment. As a 'suru' verb, it functions similarly to other Sino-Japanese verbs. The most common structure is [Noun] に驚愕する, where the noun is the cause of the astonishment. This 'ni' particle acts as the target of the emotion. For example, '彼の手腕に驚愕する' (To be amazed by his skill). It is also frequently used in the past tense, 驚愕した, to describe a reaction to a completed event. Because it is a formal word, it is often found in the passive voice or in causative constructions in very specific literary contexts, though the active form is most frequent.

Common Particle: に (ni) - used to mark the source of the shock.
Noun Form: 驚愕 (kyōgaku) - can be used as a standalone noun meaning 'astonishment'.

その計画の壮大さに誰もが驚愕した。(Everyone was astonished by the grand scale of the plan.)

Another important usage is the attributive form 驚愕の (kyōgaku no). This allows the noun 'astonishment' to modify another noun, effectively acting like an adjective. Phrases like 驚愕の結末 (a shocking ending) or 驚愕の事実 (a startling fact) are staples of marketing, news headlines, and book blurbs. In these cases, it creates a sense of hype and gravity. If a movie trailer says '驚愕のラスト!', it is promising a plot twist that will leave the audience completely stunned. It is much more dramatic than saying '驚くようなラスト'.

彼はその驚愕の事実を隠し続けていた。(He had been hiding that shocking fact.)

In complex sentences, 驚愕する can be used to link clauses. For instance, 'あまりの惨状に驚愕し、言葉を失った' (I was so astonished by the terrible state of affairs that I lost my words). Here, the 'te-form' (or the stem form 'shi' in formal writing) connects the shock to the subsequent reaction. This is very common in narrative writing. It emphasizes a sequence of events where the shock is the primary cause of a following action or state. Note that because it is a strong word, using it with 'light' topics like 'I was astonished by how good the cake was' might sound sarcastic or overly dramatic unless you are a food critic known for hyperbole.

Sentence Pattern: [Subject] は [Cause] に驚愕する。

観客はそのマジシャンの技に驚愕した。(The audience was amazed by the magician's skill.)

When comparing 驚愕する with its synonyms, remember that 驚愕 implies a 'startled' quality. While 震撼する (shinkan suru) means to be 'shaken' (often used for societal shock) and 呆然とする (bōzen to suru) means to be 'dumbfounded' or 'in a daze', 驚愕する captures that initial, sharp moment of realization and the resulting intensity of the surprise. It is the 'lightning strike' of emotions. Therefore, it is best used when the information is sudden and high-impact. In business, it might be used in a report: '競合他社の急成長に、業界全体が驚愕している' (The entire industry is astonished by the rapid growth of the competitor).

You are most likely to encounter 驚愕する in formal media. It is a favorite of news anchors and journalists. When a major scandal breaks out—such as a high-ranking politician being arrested or a massive corporate fraud being uncovered—the news will often report that '世間を驚愕させた' (It astonished the public). This phrase is a set expression in Japanese journalism to describe events that have a significant social impact. If you watch Japanese news or read newspapers like the Asahi Shimbun or Yomiuri Shimbun, you will see this word appearing in headlines regularly. It adds a layer of seriousness and urgency to the reporting.

Media Type: News Broadcasts, Documentaries, Newspapers.
Literary Genre: Mystery, Thriller, Historical Fiction.

そのニュースは日本中を驚愕させた。(The news stunned all of Japan.)

In literature, specifically in mystery or 'honkaku' detective novels, 驚愕 is used to describe the reaction of the characters to the 'trick' or the reveal. Authors use it to convey the mental state of a character who has just had their world turned upside down. For example, in the works of Keigo Higashino or Soji Shimada, you might find a detective or a witness 驚愕-ing at a piece of evidence. It’s also common in historical epics when a general is 'astonished' by an unexpected strategy from the enemy. In these contexts, the word helps build the atmosphere of high stakes and intellectual drama.

「驚愕の真実」という見出しが週刊誌に躍った。(The headline 'The Astonishing Truth' jumped out from the weekly magazine.)

In the world of entertainment marketing, 驚愕 is a high-frequency 'power word'. Movie posters, book covers, and YouTube thumbnails often use it to grab attention. A clickbait-style title might be '驚愕！10キロ痩せる方法' (Astonishing! How to lose 10kg). While this usage is a bit more 'cheapened' compared to its literary roots, it shows how the word is used to evoke a sense of 'must-see' wonder. However, in these cases, it’s often used as a standalone noun or exclamation rather than a full verb. If you are watching a variety show (バラエティ番組), the 'telop' (on-screen text) might flash '驚愕' in giant, jagged fonts when a celebrity reveals a shocking secret.

Common Setting: Variety shows, YouTube clickbait, Marketing copy.

その安さに客は驚愕した。(The customers were amazed by how cheap it was.)

Lastly, in professional or academic presentations, a researcher might use it to describe an unexpected experimental result. 'このデータには我々も驚愕しました' (We were also astonished by this data). This signals that the result was not just slightly off-prediction, but completely outside the realm of what was considered possible. In this way, 驚愕する serves as a tool for experts to communicate the significance of their findings to their peers. Whether in a lab, a newsroom, or a movie theater, the word always signals that something extraordinary has occurred.

One of the most common mistakes English speakers make is using 驚愕する in situations that are too casual. Because English speakers use 'astonished' or 'amazed' fairly loosely (e.g., 'I was amazed by the pizza'), they might be tempted to say 'ピザに驚愕した'. In Japanese, this sounds extremely strange—almost as if the pizza was so amazing it caused a national crisis or changed your fundamental understanding of the universe. For everyday surprises, stick to 驚く (odoroku). 驚愕する should be reserved for the 'big' things. Using it for small things makes you sound like you are speaking in 'anime-villain' mode or being incredibly sarcastic.

Mistake 1: Using it for minor everyday surprises (e.g., a friend being 5 minutes late).
Mistake 2: Using the wrong particle. People often try to use を (wo) instead of に (ni).

❌ 私はそのニュースを驚愕した。
✅ 私はそのニュースに驚愕した。

Another mistake involves the confusion between 驚愕 (kyōgaku) and other similar-sounding words like 恐縮 (kyōshuku - feeling small/grateful/apologetic) or 驚喜 (kyōki - being pleasantly surprised/overjoyed). While they all start with the 'kyō' sound, their meanings are vastly different. 驚愕 is neutral-to-heavy, whereas 驚喜 is specifically for happy surprises. If you tell a host you were '驚愕した' by their dinner, they might think you were appalled by it! Always ensure the context warrants a sense of 'shock' rather than just 'gratitude' or 'simple joy'.

❌ 彼の才能は驚愕だ。
✅ 彼の才能には驚愕する。(Or '驚愕の才能だ')

Wait, there's more! Learners often struggle with the 'causative' form. To say 'It astonished me', you should use '驚愕させた' (kyōgaku saseta). A common error is trying to use the active form '驚愕した' when the subject is the *thing* that caused the surprise. In Japanese, the person who feels the emotion is the subject of '驚愕した'. If the news is the subject, the news 'astonished' (驚愕させた) the people. Getting this direction of emotion wrong is a hallmark of intermediate learners. 'ニュースが私を驚愕した' is grammatically incorrect; it should be 'ニュースが私を驚愕させた' or '私はニュースに驚愕した'.

Subject-Object Error: Confusing who is the 'surprised' one vs the 'surprising' thing.

✅ その光景は人々を驚愕させた。(That sight astonished the people.)

Finally, be careful with the kanji. The second kanji 愕 (gaku) is relatively rare and often confused with other similar-looking characters like 覚 (kaku - to remember/wake up) or 愕 (which is the correct one, but often miswritten). While you might not need to write it by hand often, recognizing it is crucial for reading high-level texts. Avoid using the hiragana きょうがくする in formal writing; the kanji 驚愕 is expected at the B1 level and above to maintain the appropriate register. Using hiragana for such a formal word looks childish and out of place.

Japanese has a rich vocabulary for expressing surprise, and choosing the right one depends on the intensity and the nature of the event. The most common alternative is 驚く (odoroku). This is the 'safe' word. It can be used for anything from a surprise birthday party to a sudden loud noise. If you are unsure, use 驚く. However, if you want to sound more sophisticated or if the shock is truly significant, you might look at other kango (Chinese-origin) alternatives like 仰天する (gyōten suru) or 震撼する (shinkan suru).

驚く (Odoroku): General surprise. Neutral register. Used in daily conversation.
仰天する (Gyōten suru): Literally 'to turn toward heaven'. Means to be extremely surprised, often with a slightly more 'stunned' or 'blown away' feel than 驚愕.

あまりの安さに腰を抜かした。(I was so surprised I lost my strength in my legs - an idiom for extreme shock.)

Another powerful alternative is 震撼する (shinkan suru). This literally means 'to shake' or 'to vibrate'. It is used when an event 'shakes' society or a person's core. While 驚愕 focuses on the mental astonishment, 震撼 often implies a sense of fear or social upheaval. For example, '世界を震撼させた事件' (An incident that shook the world). If the surprise involves a sense of horror or dread, 震撼 is often more appropriate than 驚愕. On the other hand, if you are simply 'dumbfounded' and can't speak, 呆然とする (bōzen to suru) is the perfect choice. It describes the vacant, speechless state that follows a shock.

彼はその知らせに呆然と立ち尽くした。(He stood there dazed by the news.)

For positive amazement, such as being impressed by someone's talent, you might use 感嘆する (kantan suru - to admire/be impressed) or 舌を巻く (shita o maku - to be folded in the tongue, meaning to be deeply impressed). While 驚愕 can be used for positive things, it always carries that 'startled' edge. If you want to emphasize your admiration rather than your shock, 感嘆 is better. For example, '彼の演奏に感嘆した' (I was impressed by his performance) vs '彼の演奏に驚愕した' (I was astonished by his performance—perhaps because it was so unexpectedly good or weird).

Comparison Table

驚愕: Sharp, formal, intense shock.
仰天: Sudden, dramatic, 'blown away'.
震撼: Deep, societal, often negative shock.
感嘆: Positive, admiring amazement.

その美しさに息を呑んだ。(I gasped at that beauty - another idiomatic way to express shock/amazement.)

In summary, while 驚愕する is a powerful tool in your vocabulary, knowing when *not* to use it is just as important. Use it for news, formal writing, and moments of genuine, high-level shock. For everything else, there’s 驚く or the various idiomatic expressions like 息を呑む (iki o nomu - to catch one's breath) or 目を丸くする (me o maruku suru - to make one's eyes round). By mastering these nuances, you will be able to express the exact flavor of your surprise in any situation.

How Formal Is It?

Fun Fact

The kanji 驚 contains the character for 'horse' (馬). This is because horses are animals that are easily startled and react visibly to surprises by rearing up.

Pronunciation Guide

UK kjoo-ɡa-kɯ sɯ-rɯ

US kjoo-ɡa-kɯ sɯ-rɯ

Pitch accent is usually on 'ga' (kyōGAku suru), but varies by dialect.

Rhymes With

医学 (igaku) 文学 (bungaku) 哲学 (tetsugaku) 数学 (sūgaku) 語学 (gogaku) 科学 (kagaku) 留学 (ryūgaku) 通学 (tsūgaku)

Common Errors

Pronouncing 'kyō' as two syllables 'ki-yo'. It should be one smooth sound.
Making the 'gaku' sound like the English 'gack'. The Japanese 'u' is very subtle.
Over-stressing the 'suru' like 'su-ROO'.
Confusing 'kyō' with 'kyo' (short). The long vowel is vital.
Mispronouncing the 'g' as a 'j' sound.

Difficulty Rating

Reading 4/5

The kanji are complex and not used in basic daily life.

Writing 5/5

Writing 驚 and 愕 by hand is difficult even for some natives.

Speaking 3/5

Pronunciation is straightforward, but knowing when to use it is key.

Listening 3/5

Easy to hear because of the sharp 'gaku' sound.

What to Learn Next

Prerequisites

驚く (odoroku) 事実 (jijitsu) ニュース (nyūsu) 非常に (hijō ni) 表情 (hyōjō)

Learn Next

震撼する (shinkan suru) 愕然とする (gakuzen to suru) 仰天する (gyōten suru) 感嘆する (kantan suru) 呆然とする (bōzen to suru)

Advanced

驚天動地 (kyōtendōchi) 暗雲低迷 (an'un teimei) 一驚を喫する (ikkyō o kissuru)

Grammar to Know

Suru-verbs (Verbal Nouns)

驚愕 + する = 驚愕する

Causative Form (~saseru)

ニュースが人々を驚愕させた。

Noun Modification with 'no'

驚愕の事実

Particle 'ni' for emotions

結果に驚愕する。

Te-form for cause/reason

驚愕して声が出ない。

Examples by Level

ニュースを見て、お父さんは驚愕しました。

Watching the news, my father was astonished.

驚愕しました is the polite past form of 驚愕する.

その大きいケーキに驚愕しました。

I was amazed by that big cake.

The particle 'ni' marks what caused the surprise.

みんな驚愕の顔をしています。

Everyone has an astonished face.

驚愕の (noun + no) acts like an adjective for 'face'.

テストの点数に驚愕した。

I was shocked by the test score.

Short form past tense 'kyōgaku shita'.

すごいマジックに驚愕しました。

I was amazed by the amazing magic trick.

Used for a very high level of surprise.

新しいロボットに世界は驚愕した。

The world was astonished by the new robot.

Subject 'Sekai' (The world) is common with this word.

そのニュースは驚愕の内容でした。

The news had astonishing content.

驚愕 modifying the noun 内容 (naiyō - content).

彼は驚愕して、動けませんでした。

He was so astonished he couldn't move.

Te-form used to show cause and effect.

科学者はその発見に驚愕した。

The scientist was astonished by the discovery.

Discovery (hakken) is a common trigger for this verb.

驚愕の事実が明らかになった。

An astonishing fact became clear.

明らかになる means 'to become clear/revealed'.

彼の速さに、観客は驚愕した。

The audience was amazed by his speed.

Used here for positive amazement at a feat.

その事件は町の人々を驚愕させた。

The incident astonished the people of the town.

Causative form (saseta) means 'made them astonished'.

あまりに高い値段に驚愕した。

I was shocked by the excessively high price.

Amari ni (too/excessively) emphasizes the shock.

彼は驚愕のあまり、声も出なかった。

He was so astonished that he couldn't even speak.

〜のあまり (no amari) means 'due to too much of...'.

映画の驚愕のラストに満足した。

I was satisfied with the movie's astonishing ending.

Commonly used in reviews for plot twists.

その美しさに、誰もが驚愕せざるを得なかった。

Everyone couldn't help but be astonished by that beauty.

〜せざるを得ない means 'cannot help but do'.

新薬の効果に、医学界が驚愕している。

The medical world is astonished by the effect of the new drug.

Present progressive 'shite iru' for an ongoing state.

その政治家の発言は国民を驚愕させた。

The politician's statement astonished the citizens.

Formal context suitable for B1 level.

驚愕の結末を迎えた小説が話題になっている。

A novel that reached an astonishing conclusion is becoming a hot topic.

結末を迎える (to reach a conclusion).

最新のAIの能力には、専門家も驚愕せざるを得ない。

Even experts cannot help but be astonished by the latest AI's capabilities.

専門家も (Even experts) adds emphasis.

彼は自分の過去について、驚愕の告白をした。

He made an astonishing confession about his past.

告白 (kokuhaku - confession) fits well with kyōgaku.

その不祥事に、株主たちは驚愕した。

The shareholders were astonished by the scandal.

不祥事 (fushōji - scandal/misconduct).

未曾有の大災害に、世界中が驚愕した。

The whole world was astonished by the unprecedented disaster.

未曾有 (mizōu - unprecedented) is a high-level B1/B2 word.

彼の変貌ぶりに、旧友たちは驚愕した。

His old friends were astonished by how much he had changed.

変貌ぶり (henbō-buri - the way someone changed appearance).

その企業の急成長は、競合他社を驚愕させた。

The company's rapid growth astonished its competitors.

Business context usage of causative form.

驚愕に値する発見が、深海調査でなされた。

A discovery worthy of astonishment was made during the deep-sea survey.

〜に値する (ni ataisuru - to be worthy of).

犯人の動機を知り、捜査員たちは驚愕を隠せなかった。

Upon learning the killer's motive, the investigators could not hide their astonishment.

〜を隠せない (cannot hide...).

その遺跡からは、驚愕の事実が次々と見つかっている。

Astonishing facts are being found one after another from those ruins.

次々と (tsugitsugi to - one after another).

あまりの技術力の高さに、業界全体が驚愕した。

The entire industry was astonished by the sheer height of the technical skill.

あまりの〜に (due to excessive...).

彼は驚愕の表情を浮かべたまま、立ち尽くしていた。

He stood there with an expression of astonishment on his face.

表情を浮かべる (to wear an expression).

そのニュースが報じられると、世間は驚愕に包まれた。

When the news was reported, the public was wrapped in astonishment.

〜に包まれる (to be wrapped/enveloped in...).

彼の徹底した秘密主義には、誰もが驚愕するだろう。

Everyone would likely be astonished by his thorough secrecy.

〜だろう (darō - probably/likely).

その哲学的命題は、当時の知識階級を驚愕させた。

That philosophical proposition astonished the intellectual class of the time.

Knowledge/Intellectual class (chishiki kaikyū).

近代科学の粋を集めたその装置に、人々は驚愕した。

People were astonished by that device, which brought together the best of modern science.

粋を集める (to gather the best/essence).

その判決は、法曹界に驚愕をもたらした。

The verdict brought astonishment to the legal world.

法曹界 (hōsō-kai - the legal profession/world).

彼の大胆な改革案に、保守派の人々は驚愕した。

Conservative people were astonished by his bold reform plan.

Conservative faction (hoshu-ha).

あまりに凄惨な事件現場に、ベテラン刑事さえも驚愕した。

Even veteran detectives were astonished by the gruesome crime scene.

凄惨 (seisan - gruesome/ghastly).

その作家の死は、文壇を驚愕させるニュースとなった。

The author's death became news that astonished the literary world.

文壇 (bundan - the literary world/circles).

宇宙の膨大さを前にして、人類はただ驚愕するのみである。

Facing the vastness of the universe, humanity can only be astonished.

〜のみである (nothing but / only).

彼の並外れた記憶力には、周囲の人々も驚愕を禁じ得ない。

Those around him cannot help but be astonished by his extraordinary memory.

驚愕を禁じ得ない (cannot help but be astonished).

その理論のパラダイムシフトは、物理学の根幹を驚愕させた。

The paradigm shift of that theory astonished the very core of physics.

Metaphorical use of kyōgaku for scientific shifts.

歴史の闇に葬られていた驚愕の真実が、今、白日の下に晒された。

The astonishing truth that had been buried in the darkness of history has now been brought to light.

Literary expression 'hakujitsu no moto ni sarasareru'.

彼の冷徹なまでの合理主義には、恐怖すら混じった驚愕を覚える。

One feels an astonishment mixed even with fear at his cold-blooded rationalism.

〜すら混じった (mixed even with...).

文明の崩壊を目の当たりにした彼らは、驚愕のあまり言葉を失った。

Having witnessed the collapse of civilization, they were so astonished they lost their words.

目の当たりにする (to witness with one's own eyes).

その音楽は、既存の価値観を根底から驚愕させる前衛的なものだった。

The music was avant-garde, astonishing existing values from their very foundations.

根底から (from the foundations).

神の不在を証明するというその論文は、宗教界を驚愕の渦に叩き込んだ。

That thesis, which claimed to prove the non-existence of God, threw the religious world into a whirlpool of astonishment.

驚愕の渦に叩き込む (to throw into a whirlpool of astonishment).

彼の描く驚愕のヴィジョンは、未来への警鐘とも受け取れる。

The astonishing vision he depicts can also be taken as a warning for the future.

警鐘 (keishō - alarm bell/warning).

その精緻極まる手仕事に、私はただただ驚愕し、平伏するしかなかった。

I was simply astonished by that extremely exquisite handiwork and could only prostrate myself.

精緻極まる (extremely exquisite/precise).

Common Collocations

驚愕の事実

世間を驚愕させる

驚愕に値する

驚愕を隠せない

驚愕の結末

あまりの〜に驚愕する

驚愕の展開

驚愕を禁じ得ない

驚愕のあまり

驚愕の表情

Common Phrases

日本中を驚愕させた

— Stunned the whole of Japan. Used for national news.

その大ニュースは日本中を驚愕させた。

驚愕のラスト

— Astonishing ending. Common in movie marketing.

驚愕のラスト10分を見逃すな！

驚愕のコスパ

— Astonishing cost-performance (value for money). Modern slangy usage.

このランチは驚愕のコスパだ。

驚愕の真相

— The astonishing truth/real story. Used in mysteries.

ついに驚愕の真相が語られた。

驚愕の連続

— A series of astonishing events. Used for fast-paced stories.

その旅は驚愕の連続だった。

驚愕を覚える

— To feel astonishment. Formal way to say one is shocked.

彼の無知さには驚愕を覚える。

驚愕の最新作

— Astonishing latest work. Marketing phrase.

あの監督の驚愕の最新作が公開される。

驚愕の的中率

— Astonishing accuracy rate. Used for horoscopes or predictions.

驚愕の的中率を誇る占い師。

驚愕の変身

— Astonishing transformation. Used in fashion or character growth.

彼女は驚愕の変身を遂げた。

驚愕の舞台裏

— The astonishing behind-the-scenes. Used in documentaries.

驚愕の舞台裏を初公開する。

Often Confused With

驚愕する vs 恐縮 (Kyōshuku)

Sounds similar but means feeling apologetic or grateful. 'Kyōshuku desu' is 'I'm sorry/thank you'.

驚愕する vs 驚喜 (Kyōki)

Means to be overjoyed. 'Kyōgaku' is neutral shock, 'Kyōki' is happy shock.

驚愕する vs 愕然 (Gakuzen)

Very similar, but 'Gakuzen' often implies being 'stunned' or 'aghast', often with a negative connotation.

Idioms & Expressions

"驚愕を禁じ得ない"

— Cannot help but be astonished. A very formal expression of shock.

そのずさんな管理体制には驚愕を禁じ得ない。

Formal

"驚愕のあまり〜"

— So astonished that (some result follows).

驚愕のあまり、手に持っていたコップを落とした。

Neutral

"驚愕に震える"

— To tremble with astonishment. Usually implies fear or awe.

その恐ろしい計画に驚愕に震えた。

Literary

"驚愕の眼差し"

— A gaze of astonishment.

人々は驚愕の眼差しで彼を見送った。

Literary

"驚愕の域に達する"

— To reach the level of being astonishing.

彼の職人技は驚愕の域に達している。

Formal

"驚愕の一言"

— An astonishing word/statement.

彼が放った驚愕の一言に、場が凍りついた。

Neutral

"驚愕のニュースが走る"

— Astonishing news spreads quickly.

政界に驚愕のニュースが走った。

Journalistic

"驚愕を誘う"

— To invite/cause astonishment.

その斬新なデザインは驚愕を誘った。

Formal

"驚愕の色を浮かべる"

— To show a look of astonishment on one's face.

彼女の顔には驚愕の色が浮かんでいた。

Literary

"驚愕の淵に沈む"

— To sink into the depths of astonishment (often negative).

裏切りを知り、彼は驚愕の淵に沈んだ。

Literary

Easily Confused

驚愕する vs 驚く (Odoroku)

Both mean 'to be surprised'.

'Odoroku' is general and casual. 'Kyōgaku' is formal, much more intense, and usually used for significant events.

友達に会って驚いた (Odoroku) vs 事件に驚愕した (Kyōgaku).

驚愕する vs 震撼 (Shinkan)

Both describe being shocked.

'Shinkan' means 'to shake' and is used for things that shake society. 'Kyōgaku' is more about the mental state of astonishment.

世界を震撼させたテロ (Shinkan) vs その事実に驚愕した (Kyōgaku).

驚愕する vs 呆然 (Bōzen)

Both describe shock.

'Bōzen' is the state of being speechless or dazed *after* the shock. 'Kyōgaku' is the sharp moment of astonishment itself.

驚愕して呆然とした (I was astonished and then became dazed).

驚愕する vs 仰天 (Gyōten)

Both mean 'extreme surprise'.

'Gyōten' is slightly more dramatic and less formal than 'Kyōgaku'. It's like 'flabbergasted'.

腰を抜かして仰天した。

驚愕する vs 感嘆 (Kantan)

Both mean 'amazed'.

'Kantan' is exclusively positive (admiration). 'Kyōgaku' can be negative or neutral (shock).

見事な演奏に感嘆した。

Sentence Patterns

[Noun] に驚愕した。

そのニュースに驚愕した。

[Noun] は人を驚愕させる。

その事実は人々を驚愕させる。

驚愕の [Noun] が見つかった。

驚愕の事実が見つかった。

あまりの [Noun] に驚愕する。

あまりの安さに驚愕する。

驚愕のあまり [Result]。

驚愕のあまり立ち尽くした。

驚愕を禁じ得ない。

彼の態度には驚愕を禁じ得ない。

驚愕に値する [Noun]。

驚愕に値する発見だ。

驚愕の渦に叩き込む。

世界を驚愕の渦に叩き込んだ。

Word Family

Nouns

驚愕 (kyōgaku) - astonishment

驚き (odoroki) - surprise

驚嘆 (kyōtan) - wonder/admiration

Verbs

驚く (odoroku) - to be surprised

驚かす (odorokasu) - to surprise someone

愕然とする (gakuzen to suru) - to be stunned

Adjectives

驚くべき (odorokubeki) - astonishing/surprising

驚異的な (kyōiteki na) - phenomenal/extraordinary

震撼 (shinkan)

仰天 (gyōten)

呆然 (bōzen)

愕然 (gakuzen)

驚嘆 (kyōtan)

How to Use It

frequency

High in written media; Medium in spoken formal Japanese.

Common Mistakes

Using 'wo' instead of 'ni'. → ニュースに驚愕した。
Emotions in Japanese usually target their cause with 'ni', not 'wo'.
Using it for minor surprises. → 友達が来て驚いた。
Kyōgaku is too heavy for seeing a friend unexpectedly.
Miswriting the second kanji as '覚'. → 驚愕
Gaku (愕) is different from Kaku (覚). They look similar but have different meanings.
Using it as a na-adjective. → 驚愕の事実
It's a noun. Use 'no' to modify other nouns, not 'na'.
Confusing it with 'Kyōshuku'. → 驚愕いたしました。
Kyōshuku is for feeling sorry/grateful. Kyōgaku is for being shocked.

Tips

Save it for the Big Stuff

Don't waste '驚愕' on small things. Use it when you are genuinely 'shaken' or 'blown away'.

Use with 'ni'

Always remember that the cause of your surprise takes the particle 'ni'.

Headline Power

In titles, '驚愕の...' is a great way to grab a reader's attention.

Variety Show Staple

Watch for the '驚愕' text on Japanese variety shows to see it used in a semi-casual, dramatic way.

Pair with 'Jijitsu'

'驚愕の事実' (astonishing fact) is the most common pair for this word. Memorize them together.

Kanji Recognition

Focus on recognizing the 'horse' in 驚 and the 'heart' in 愕 to remember the meaning.

Formal Tone

Using this word makes you sound more academic and well-read.

News Buzzword

It's a key buzzword for news anchors. If you hear it, pay close attention to the news!

Dramatic Effect

In fiction, use it when a character's world-view is challenged.

The Startled Horse

Remember the horse kanji! A horse that rearing up is 'kyōgaku-ing'.

Memorize It

Mnemonic

Think of a 'Kyo' (Giant) 'Gaku' (Gawk). When you see a giant, you gawk at it in 'kyōgaku' (astonishment).

Visual Association

Imagine a horse (驚) suddenly rearing up because its heart (忄 in 愕) skipped a beat from shock.

Word Web

Surprise Shock News Formal Astonish Appall Stun Startle

Challenge

Try to find three news headlines today that could use the word '驚愕'. Write them down in Japanese using '驚愕の...'.

Word Origin

Borrowed from Middle Chinese. The term consists of two kanji: 驚 (kyō) and 愕 (gaku). It entered the Japanese language as a formal Sino-Japanese compound used in high-level texts.

Original meaning: To be startled and alarmed; to have one's heart jump with surprise.

Sino-Japanese (Kango).

Cultural Context

Be careful when using it for negative events (like deaths or crimes) to ensure you sound appropriately solemn rather than excited.

English speakers might use 'I'm shocked' for small things, but Japanese people reserve 'kyōgaku' for big things. Don't use it for a cold coffee!

The Melancholy of Haruhi Suzumiya (Volume 10/11 is titled 'The Surprise of Haruhi Suzumiya' - 涼宮ハルヒの驚愕). Commonly seen in 'Shocking Truth' variety show segments. Used in headlines for the 2011 Tohoku Earthquake reactions.

Practice in Real Life

Real-World Contexts

News/Journalism

世間を驚愕させた事件
驚愕の事実が判明
国民は驚愕した
驚愕のニュース

Mystery Novels

驚愕の結末
驚愕の真相
彼は驚愕して立ち尽くした
驚愕の犯行

Academic/Scientific Reports

驚愕に値する結果
研究者を驚愕させた
驚愕の発見
データに驚愕する

Marketing/Advertising

驚愕のプライス
驚愕の10日間
驚愕のコスパ
驚愕の新機能

Business

他社の進出に驚愕する
驚愕の売上高
業界を驚愕させる
驚愕のスピード

Conversation Starters

"最近、何か驚愕するようなニュースはありましたか？ (Has there been any astonishing news lately?)"

"あの映画の驚愕のラストについてどう思いますか？ (What do you think about that movie's astonishing ending?)"

"今までで一番驚愕した出来事は何ですか？ (What is the most astonishing event you've experienced so far?)"

"この技術の進歩には驚愕しますよね。 (This technological progress is astonishing, isn't it?)"

"驚愕の事実を知ってしまった時、どう反応しますか？ (How do you react when you learn an astonishing fact?)"

Journal Prompts

Write about a time you were truly 'kyōgaku' (astonished). What happened and why was it so shocking?

Describe a piece of news that recently 'kyōgaku-saseta' (astonished) the public in your country.

Imagine you are a detective revealing a 'kyōgaku no shinjitsu' (astonishing truth). Write the scene.

Do you think the word 'kyōgaku' is overused in modern YouTube titles? Explain your opinion.

Compare 'odoroku' and 'kyōgaku' using examples from your own life.

Frequently Asked Questions

10 questions

Usually no. It's too heavy. Use '驚く' or 'びっくりする'. If the party was so big it made national news, maybe!

It is a noun that becomes a verb by adding 'suru'. You can also use it as an adjective with 'no'.

They are very close. 'Kyōgaku' is more common for 'astonishment', while 'Gakuzen' is often used for being 'stunned' by a negative or frightening realization.

Yes, if you are describing a reaction to a major market change or a significant success, but use it sparingly to maintain its impact.

It's the heart radical (忄) plus the 'gaku' component. It's quite complex, so practice it carefully!

No, it can be positive, like being amazed by someone's genius. However, it always implies a 'shock' factor.

The particle 'ni' is most common for marking the cause of the astonishment (e.g., 事実に驚愕する).

Rarely in casual speech. You'll mostly hear it on TV, in movies, or read it in novels and news.

It's a common marketing phrase meaning 'astonishing cost-performance' (amazing value for money).

No. You must say '私は驚愕した' (I was astonished) or '驚愕の事実だ' (It's an astonishing fact).