四字熟語 Yojijukugo

Yojijukugo: Four-Kanji Japanese Idiom Collection

Yojijukugo (四字熟語) are Japanese idioms made of exactly four kanji characters. Each idiom carries dense meaning inherited from classical Chinese and Japanese literary traditions. Explore our yojijukugo collection from common expressions to rarer forms.

What Is Yojijukugo?

Yojijukugo (四字熟語) literally means "four-character idiom". The term refers to fixed Japanese expressions made of exactly four kanji. Many entries come from classical Chinese literature (漢文), older Japanese sayings, and Buddhist texts.

Unlike ordinary vocabulary, yojijukugo compresses complex ideas, moral values, or situational nuance into four characters. Internal structures vary: some use two pairs (2+2), some use one-plus-three (1+3), and some are four independent kanji working as one expression.

Yojijukugo appears in daily Japanese usage: formal speeches, headlines, lyrics, academic writing, New Year cards, and casual conversation. Mastering yojijukugo signals deeper language command and often matters in Kanken (漢字検定) study.

100 Yojijukugo Today

4 November 2026

100 selected yojijukugo from 1,777 entries, refreshed daily. Open a card to see meaning, reading, and usage.

而今而後 じこんじご in the future 天孫降臨 てんそんこうりん the descent to earth of the grandson of the sun goddess 抱腹絶倒 ほうふくぜっとう laughing oneself into convulsions 忠孝両全 ちゅうこうりょうぜん being a good son and a loyal subject 秋風落莫 しゅうふうらくばく forlorn and helpless 祭政一致 さいせいいっち unity of church and state 豊年満作 ほうねんまんさく bumper crops 生々世々 しょうじょうせぜ eternity 霊台方寸 れいだいほうすん heart 前途多望 ぜんとたぼう promising (rosy, bright) future 同文同種 どうぶんどうしゅ same race and same script 美人薄命 びじんはくめい beauty and fortune seldom go together 孤軍奮闘 こぐんふんとう fighting alone 極悪非道 ごくあくひどう inhuman 天長地久 てんちょうちきゅう coeval with heaven and earth 複雑多岐 ふくざつたき complex and wide-ranging 私利私欲 しりしよく self-interest 雲散霧消 うんさんむしょう vanishing like mist 贅沢三昧 ぜいたくざんまい indulging in every possible luxury 直截簡明 ちょくせつかんめい plain and simple 長汀曲浦 ちょうていきょくほ long stretch of winding beach 自浄作用 じじょうさよう autopurificatory activity (in the natural world) 一族郎党 いちぞくろうとう one's family and followers 二六時中 にろくじちゅう night and day 啐啄同時 そったくどうじ timing is everything 厚顔無恥 こうがんむち shameless 自己嫌悪 じこけんお self-hatred 黒風白雨 こくふうはくう sudden rain shower in a dust storm 用意周到 よういしゅうとう very careful 一旦緩急 いったんかんきゅう (when) danger threatens 鳩首協議 きゅうしゅきょうぎ put heads together and confer 誇大妄想 こだいもうそう megalomania 先祖伝来 せんぞでんらい inherited 三位一体 さんみいったい the Trinity 蜿蜿長蛇 えんえんちょうだ long and serpentine (line, queue, etc.) 千慮一得 せんりょいっとく even a fool may sometimes come up with a good idea 夢幻泡影 むげんほうよう a dream, an illusion, a bubble, a shadow (metaphor for the transience of life) 人生朝露 じんせいちょうろ man's life vanishes like a dew 喜色満面 きしょくまんめん being all smiles with joy 哀毀骨立 あいきこつりつ losing weight and becoming bony because of grief 悪口雑言 あっこうぞうごん all kinds of malicious gossip 百家争鳴 ひゃっかそうめい let a hundred schools of thought contend 内柔外剛 ないじゅうがいごう tough on the outside but soft at heart 清浄潔白 せいじょうけっぱく upright and clean-handed 已己巳己 いこみき all the same 疲労困憊 ひろうこんぱい total exhaustion 轗軻不遇 かんかふぐう being neglected by the world 百姓一揆 ひゃくしょういっき peasant uprising (Edo period) 断崖絶壁 だんがいぜっぺき critical situation 内剛外柔 ないごうがいじゅう gentle on the outside but tough on the inside 無明長夜 むみょうじょうや the long night of spiritual darkness 適材適所 てきざいてきしょ the right person in the right place 垂直思考 すいちょくしこう rigid (stereotypical) thinking that adheres to preconceived notions 一切皆空 いっさいかいくう matter is void 意匠惨憺 いしょうさんたん taxing one's ingenuity in devising something 胆大心小 たんだいしんしょう being bold and courageous, but also careful and meticulous 三寒四温 さんかんしおん alternation of three cold and four warm days (usu. in late winter and early spring) 諸説紛々 しょせつふんぷん divergent opinions abound 半官半民 はんかんはんみん semi-governmental 極楽浄土 ごくらくじょうど Amitabha's Pure Land 出家遁世 しゅっけとんせい monastic seclusion 救国済民 きゅうこくさいみん saving a nation and providing relief to the people 暮色蒼然 ぼしょくそうぜん dusky 安寧秩序 あんねいちつじょ peace and order 人権蹂躙 じんけんじゅうりん human rights violation 無知蒙昧 むちもうまい unenlightened 鬼面仏心 きめんぶっしん having the face of a devil and the heart of Buddha 慎重居士 しんちょうこじ very cautious person 遠交近攻 えんこうきんこう policy of cultivating distant countries while working to conquer those nearby 談論風発 だんろんふうはつ spirited discussion 雌伏雄飛 しふくゆうひ biding one's time building up strength till finally grasping an opportunity to launch out and flourish 謹厳実直 きんげんじっちょく sober and honest 忠勇無双 ちゅうゆうむそう of peerless loyalty and bravery 清風明月 せいふうめいげつ refreshing breeze and the bright moon 九十九折 つづらおり winding 廃藩置県 はいはんちけん abolition of feudal domains and establishment of prefectures (1871) 二枚看板 にまいかんばん the two leading actors (in a play) 滄海桑田 そうかいそうでん the world is a scene of constant changes 阿鼻叫喚 あびきょうかん agonizing cries 沈思黙考 ちんしもっこう being lost in deep thought 雅俗混交 がぞくこんこう mixture of both culture and vulgarism 懸腕直筆 けんわんちょくひつ calligraphy technique of holding the brush perpendicularly, lower arm raised, and elbow held away from the body 深層心理 しんそうしんり deep psyche 因果因縁 いんがいんねん cause and effect 緊褌一番 きんこんいちばん gird oneself up 喧々囂々 けんけんごうごう noisy 自殺行為 じさつこうい suicidal act 残念無念 ざんねんむねん deep regret 暴飲暴食 ぼういんぼうしょく drinking and eating too much 往事茫々 おうじぼうぼう memories of the past events (being, becoming) far and distant 翻雲覆雨 ほんうんふくう fickle friendship 深山幽谷 しんざんゆうこく deep mountain valleys 飛耳長目 ひじちょうもく sharp eyes and ears used for collecting information far and wide 唯我独尊 ゆいがどくそん self-conceit 腐敗堕落 ふはいだらく debasement 偽装工作 ぎそうこうさく diversionary tactics (maneuvering) 独立不羈 どくりつふき acting according to one's own beliefs, being undisturbed by others 一笑千金 いっしょうせんきん a smile of a beautiful woman is worth a thousand pieces of gold 矛盾撞着 むじゅんどうちゃく self-contradiction 魚目燕石 ぎょもくえんせき imitation that looks identical to the original

This list updates daily. To find a specific yojijukugo, use the search field at the top of this page.

Common Questions About Yojijukugo

What is yojijukugo?

Yojijukugo (四字熟語) is a Japanese idiom made of exactly four kanji characters. The term comes from classical Chinese and Japanese literary tradition and is used to express dense meaning in compact form.

How many yojijukugo are there?

Reference sources list more than 20,000 yojijukugo. Kanji.Jepang.org currently provides 1,777 yojijukugo entries with meaning and reading support, and we keep expanding toward 6,600+ coverage.

Is yojijukugo used in daily Japanese?

Yes. Many yojijukugo are used in daily conversation, media, speeches, and formal writing in Japan. Common examples include 一期一会, 以心伝心, and 一石二鳥.

How should I study yojijukugo?

Start from frequently used yojijukugo and learn the composing kanji one by one. On Kanji.Jepang.org, each yojijukugo entry includes meaning, reading, and links to the forming kanji.

What is the difference between yojijukugo and kotowaza?

Yojijukugo always uses exactly four kanji as a fixed expression. Kotowaza (ことわざ) is a proverb that can have variable length and is often longer. Some yojijukugo can also function as kotowaza, but they are different categories.