詳述

The Japanese term 詳述 (しょうじゅつ - Shōjutsu) is a sophisticated Sino-Japanese (Kango) compound that translates to "detailed explanation" or "to describe in great detail." It is composed of two kanji: 詳 (detailed, full, accurate) and 述 (to state, mention, relate). When combined, they form a powerful verb and noun that signify an exhaustive, comprehensive, and meticulous account of a subject. Unlike the more common setsumei (explanation), shōjutsu implies a level of depth that leaves no stone unturned, often moving from general principles to the most minute particulars. This word is a staple of formal Japanese, appearing frequently in academic papers, legal documents, technical manuals, and high-level business reports. It suggests a professional or scholarly commitment to clarity and precision, indicating that the speaker or writer has provided all necessary context and evidence.

Etymological Nuance

The character 詳 (shō) contains the 'speech' radical and 'sheep' (representing order or quality), suggesting a 'well-ordered' way of speaking. The character 述 (jutsu) implies following a path or a method to convey information. Together, they represent a 'methodical and well-ordered narration' of facts.

In social contexts, you will rarely hear shōjutsu in a casual conversation between friends at a cafe. Instead, it is used when the gravity of the topic requires a high degree of specificity. For instance, a doctor might shōjutsu a complex surgical procedure to a patient's family, or a historian might shōjutsu the causes of a specific war in a textbook. It carries a certain weight of authority. If someone says they will shōjutsu something, they are promising a deep dive into the subject matter, signaling to the audience that they should prepare for a significant amount of information. This word is also frequently used in the passive voice (shōjutsu sarete iru) to refer back to previously mentioned or upcoming sections of a text, acting as a navigational marker for readers navigating complex information architectures.

Register and Context

This word belongs to the 'Academic/Formal' register. It is often paired with particles like 'を' (object) or 'にて' (at/in) in formal writing. It is a 'suru' verb, meaning it can function as both a noun and a verb depending on the suffix.

Furthermore, shōjutsu is often contrasted with ryakujutsu (略述), which means to summarize or state briefly. Understanding this pair helps learners grasp the scale of information density in Japanese communication. While ryakujutsu is used for executive summaries or quick overviews, shōjutsu is for the 'meat' of the document—the technical specifications, the historical analysis, or the legal fine print. In a world of fast-paced information, shōjutsu represents the slow, deliberate, and thorough transfer of knowledge. It is the hallmark of an expert who values accuracy over brevity.

Collocation Patterns

Commonly paired with: 経緯 (circumstances), 手順 (procedure), 理由 (reason), 計画 (plan), and 状況 (situation).

Using 詳述 (shōjutsu) correctly requires an understanding of its grammatical flexibility as a 'suru' verb and its semantic placement in formal structures. In most cases, it takes the direct object marker 'を' (o) when you are the one doing the detailing. For example, '理由を詳述する' (to detail the reasons). However, it is perhaps even more common in its passive form, '～に詳述されている' (is detailed in...), particularly in academic and technical writing where the focus is on the document or the section rather than the author. This usage helps maintain an objective, third-person perspective which is highly valued in Japanese professional environments.

Grammatical Structure 1: Active Voice

[Subject] + は + [Topic] + を + 詳述する。
Example: 筆者はその背景を詳述した。(The author detailed the background.)

Another important aspect of shōjutsu is its compatibility with various formal particles. You will often see it used with 'について' (about) or 'に関する' (related to). For example, '経済への影響について詳述する' (to detail the impact on the economy). When used as a noun, it can be modified by adjectives or other nouns, such as '詳細な詳述' (a detailed detailing—though this is redundant, '事細かな詳述' or '網羅的な詳述' are better). In professional settings, using shōjutsu instead of setsumei immediately elevates the tone of your speech or writing, making it clear that the information provided is not just an explanation, but a thorough breakdown.

Grammatical Structure 2: Passive/Reference

[Topic] + は + [Location] + にて/に + 詳述されている。
Example: 詳細は別紙に詳述されている。(Details are detailed in the attached sheet.)

In spoken Japanese, shōjutsu is primarily found in formal presentations or lectures. A professor might say, "今日の講義では、この現象のメカニズムを詳述します" (In today's lecture, I will detail the mechanism of this phenomenon). In this context, it sets an expectation for a high-density, technical session. It is also useful in business negotiations when one party needs to provide a thorough breakdown of costs or timelines. Using shōjutsu conveys a sense of transparency and thoroughness, which can build trust in professional relationships. However, avoid using it when the explanation is actually brief, as this would be considered a misuse of the term's inherent meaning of 'depth'.

Common Subjects for 詳述

Research findings, legal clauses, technical specs, historical events, financial audits, and medical diagnoses.

Understanding the environment of 詳述 (shōjutsu) is key to mastering its use. This is not a 'street' word; it is a 'study' and 'office' word. You will encounter it most frequently in Japanese higher education. When reading scholarly articles (ronbun), the methodology section is almost always described as '詳述されている' (detailed). Professors will use it in syllabi to explain the course requirements. If you are a student in Japan, seeing this word in an assignment prompt means you are expected to provide a very thorough answer, not just a summary. It is the linguistic signal for 'depth required'.

Professional Environment

In the corporate world, shōjutsu appears in internal reports (shanaikyō) and white papers. When a company undergoes an audit, the findings are shōjutsu in the final document. It's also found in contracts to ensure that terms are legally binding through their specificity.

Another common venue is the Japanese news media, particularly in high-quality journalism like the Nikkei or Asahi Shimbun. When reporting on complex government policies or international treaties, the journalists will use shōjutsu to describe the detailed breakdown of the agreements. For example, "協定の内容が詳述された" (The contents of the agreement were detailed). It implies that the news source is providing a deep analysis rather than just a soundbite. Similarly, in legal dramas or real-life court reporting, lawyers and judges shōjutsu the evidence and the rationale behind their arguments. This reinforces the word's association with logic, evidence, and systematic thought.

Literary Usage

While primarily technical, shōjutsu can appear in literary criticism or historical novels where an author meticulously describes a setting or a character's internal state. It highlights the author's descriptive prowess.

Finally, you will see shōjutsu in specialized non-fiction books, such as those about philosophy, science, or history. If a book's title includes the word shōjutsu, it serves as a warning and a promise: the book will be dense, thorough, and likely quite long. It is the opposite of a 'for dummies' book. For learners, encountering shōjutsu in the wild is a sign that you have entered the world of adult, professional Japanese. It is a word that commands respect and attention, signifying that the information being presented is of a high caliber and requires careful consideration.

Where to look for it

Government reports (e-Gov Japan), academic databases (CiNii), and the 'About Us' or 'Investor Relations' sections of major Japanese corporation websites.

The most frequent mistake learners make with 詳述 (shōjutsu) is using it in too casual a context. Because it translates to "detail" or "explain in detail," learners often use it where they should use setsumei (explanation) or oshieru (tell/teach). For instance, if you ask a friend to explain a game rule, saying "ルールを詳述して" (Detail the rules) would sound incredibly stiff and unnatural, almost like a lawyer speaking to a witness. In casual settings, '詳しく教えて' (tell me in detail) or '詳しく説明して' is much more appropriate. Shōjutsu implies a structured, formal output, usually in writing or a formal presentation.

Mistake 1: Wrong Register

Casual: 昨日のデートのことを詳述して！ (Detail yesterday's date!) - WRONG.
Natural: 昨日のデートのこと、詳しく教えて！ (Tell me all about yesterday's date!) - RIGHT.

Another common error is confusing shōjutsu with similar-sounding or similar-meaning words like shōsetsu (詳説 - detailed exposition) or kijutsu (記述 - description). While shōsetsu is very close, it is often used for scholarly lectures or books that provide a commentary on a subject. Kijutsu is a broader term that simply means to write down or describe something without necessarily implying the exhaustive depth of shōjutsu. Using shōjutsu when you only mean a brief description can lead to misunderstandings about the volume of information you are providing. If you say you will shōjutsu a plan and then only provide three bullet points, your audience will feel misled.

Mistake 2: Redundancy

Avoid saying '詳しく詳述する' (to detail in detail). Since 詳 already means 'detailed', adding '詳しく' (kuwashiku) is redundant. Just say '詳述する'.

Finally, learners often struggle with the particle usage. Remember that shōjutsu is a transitive verb in its 'suru' form, so it needs 'を' for the object being detailed. However, it is also a noun. You might see '～の詳述' (the detailing of...), but this is less common than the verbal form. In academic writing, the passive '～が詳述されている' is the safest and most natural-sounding pattern. Misusing the particles (e.g., using 'に' instead of 'を' for the object) will make the sentence grammatically incorrect. Also, ensure you don't confuse it with shōsetsu (小説), which means 'novel'—the pronunciation is similar but the kanji and meaning are entirely different!

Summary of Misuse

1. Too casual contexts. 2. Confusing with 'novel' (shōsetsu). 3. Redundancy with 'kuwashiku'. 4. Incorrect passive/active particle use.

Japanese has a rich vocabulary for 'explaining' and 'describing,' and choosing the right word depends heavily on the context and the desired level of detail. 詳述 (shōjutsu) sits at the high end of the formality and detail spectrum. Let's compare it with its closest relatives to see when you should use which. The most common alternative is 詳しく説明する (kuwashiku setsumei suru). This is the 'Swiss Army Knife' of the group; it's natural in almost any situation, from teaching a child to explaining a business strategy. Use it when you want to be understood without sounding overly academic.

Comparison: 詳述 vs. 詳説 (Shōsetsu)

Shōjutsu (詳述) focuses on the 'narration' or 'stating' of facts. Shōsetsu (詳説) focuses on the 'theory' or 'explanation' (説). Shōsetsu is often used for books that explain a difficult concept, like 'A Detailed Exposition of Quantum Physics'. Shōjutsu is used for describing events, procedures, or facts.

Another similar term is 記述 (kijutsu). This simply means 'to describe' or 'to write down.' It is more neutral than shōjutsu. While shōjutsu promises a lot of detail, kijutsu just says that something is written. For example, '事実に基いて記述する' (to describe based on facts). Then there is 描写 (byōsha), which is specifically for 'depiction'—painting a picture with words. You use byōsha for scenery, characters in a novel, or a vivid scene. You wouldn't use shōjutsu to describe a beautiful sunset; you would use byōsha. Conversely, you wouldn't use byōsha to describe a technical software update; you would use shōjutsu.

Comparison: 詳述 vs. 解説 (Kaisetsu)

Kaisetsu (解説) means 'commentary' or 'analysis'. A sports commentator provides kaisetsu. A book's afterword often has a kaisetsu. Shōjutsu is about the facts themselves, while kaisetsu is about the meaning or interpretation of those facts.

For those looking for antonyms, 略述 (ryakujutsu) is the perfect counterpart. It means 'to state briefly' or 'to summarize.' In a formal presentation, you might say, "時間の都合上、ここでは略述にとどめますが、詳細は資料に詳述されています" (Due to time constraints, I will only summarize here, but the details are detailed in the handouts). This sentence perfectly illustrates the relationship between the two words. Other alternatives like 要約 (yōyaku - summary) or 概説 (gaisetsu - overview) are also useful when you want to indicate that you are being brief rather than detailed. Mastering these distinctions allows you to navigate Japanese formal communication with the precision of a native speaker.

Summary Table

詳述: Formal, technical details. 詳説: Scholarly exposition. 記述: Neutral description. 描写: Literary/Visual depiction. 略述: Brief summary.