推理（すいり、suiri）
- deduction/mystery

The Japanese word 推理 (すいり) means "reasoning," "inference," "deduction," or "speculation." It refers to the process of drawing conclusions based on evidence, facts, and logical thinking. It involves using information to figure something out, especially when the answer isn't immediately obvious. It can be used for solving mysteries, analyzing situations, or understanding complex information. The core idea is to go beyond what is directly stated and use available information to form a judgment or belief. 推理 is a crucial skill in fields like detective work, science, and even everyday problem-solving.

⚫︎事件の推理 Translation: Reasoning about the incident ⚫︎彼の推理は正しかった Translation: His deduction was correct. ⚫︎推理小説を読む Translation: To read a mystery novel.

You can use 推理 in various contexts. ⚫︎ When discussing the process of figuring something out. ⚫︎ When talking about solving a mystery or crime. ⚫︎ When explaining how someone arrived at a conclusion. ⚫︎ When referring to intellectual analysis or speculation. It's often used as a noun, but it can also function as a suru-verb, forming phrases like 推理する (to reason, to infer).

推理 is written using the kanji 推理, which is read as すいり in hiragana. There are no other common ways to write this word. The okurigana (the suffix hiragana) is standard.

⚫︎ 考察 (こうさつ) - consideration, investigation ⚫︎ 推測 (すいそく) - speculation, guess ⚫︎ 類推 (るいすい) - analogy, inference ⚫︎ 憶測 (おくそく) - speculation, conjecture ⚫︎ 検討 (けんとう) - examination, consideration Depending on the context, other words might also be used to express a similar idea, but these are the most direct synonyms.

There isn't a direct single antonym for 推理. However, words or concepts that represent the opposite of reasoned thinking might be considered antonymous in specific contexts. ⚫︎ 無視 (むし) - ignoring ⚫︎ 無知 (むち) - ignorance ⚫︎ 直感 (ちょっかん) - intuition These words don't directly negate 推理 but represent contrasting approaches or states.

彼は事件の真相を推理しようと必死に証拠を集めた。 ・Translation: He desperately gathered evidence to try to deduce the truth of the incident. ・Explanation: This sentence demonstrates how 推理 is used in the context of solving a crime by analyzing evidence.

その理論は彼の詳細な推理に基づいている。 ・Translation: That theory is based on his detailed reasoning. ・Explanation: This shows how 推理 can be applied to scientific or intellectual pursuits, indicating a process of careful thought.

The word 推理 is a combination of two kanji: 推 (すい), meaning "to infer," "to guess," or "to conjecture," and 理 (り), meaning "reason," "logic," or "principle." Therefore, 推理 literally means "to infer reason" or "to reason out".