妄想（もうそう、mousoう）
- delusion/fantasy

The Japanese word 妄想 (もうそう, *mousou*) generally translates to "delusion," "fantasy," "illusion," or "hallucination" in English. It refers to a belief or idea that is firmly held despite being contradicted by reality or rational thought. It often involves a distorted perception of oneself, others, or the world. 妄想 can range from relatively harmless daydreams to serious psychiatric conditions. ⚫︎ It implies a detachment from reality. ⚫︎ The belief is typically resistant to evidence that contradicts it. ⚫︎ It can involve vivid and detailed scenarios.

⚫︎ 彼女は自分が有名人だと妄想している。 Translation: She is delusional that she is a celebrity. ⚫︎ 彼は宇宙人に監視されていると妄想に取りつかれている。 Translation: He is consumed by the delusion that he is being watched by aliens. ⚫︎ その小説は主人公の妄想の世界を描いている。 Translation: That novel depicts the protagonist's world of fantasy.

妄想 can be used in various contexts: ⚫︎ To describe a psychological state. ⚫︎ To talk about creative endeavors involving imagination, like storytelling or art, but the nuance is still related to the unreal. ⚫︎ To criticize someone's unrealistic or impractical ideas. ⚫︎ It's essential to use it carefully, as it can be a sensitive term, particularly when referring to someone's mental state. ⚫︎ Often used to describe a fixed false belief.

妄想 is primarily written with the kanji 妄想. The reading is もうそう in hiragana. There are no other common ways to write this word. The okurigana is fixed, with no variations.

⚫︎ 空想 (*kuusou*) - fantasy, daydream ⚫︎ 幻想 (*gensou*) - illusion, fantasy ⚫︎ 思い込み (*omoikomi*) - assumption, preconceived notion (can be a mild form of delusion) ⚫︎ 虚構 (*kyokou*) - fiction, fabrication

⚫︎ 現実 (*genjitsu*) - reality ⚫︎ 事実 (*jijitsu*) - fact ⚫︎ 真実 (*shinjitsu*) - truth ⚫︎ 理解 (*rikai*) - understanding

彼は自分の成功を妄想の中でしか見ていない。 ・Translation: He only sees his success in his delusions. ・Explanation: This sentence illustrates how someone lives in a world of 妄想, detached from actual achievements.

彼女は彼の言葉を全て真実だと妄想してしまっている。 ・Translation: She has deluded herself into believing everything he says is true. ・Explanation: This sentence describes someone who accepts something that is untrue, indicating a form of 妄想.

The word 妄想 is formed from two kanji: 妄 (*mou*), meaning "reckless," "absurd," or "deluded," and 想 (*sou*), meaning "thought," "idea," or "imagination." Therefore, the combined meaning conveys the idea of an irrational or unfounded thought.