Translation guide
The English word 'entropy' is primarily a scientific term from thermodynamics and information theory. In everyday English, it is sometimes used metaphorically to mean disorder or chaos. This guide focuses on how to express these concepts naturally in Japanese, from technical to casual contexts.
The scientific measure of disorder in a physical system, as used in physics and chemistry.
The standard loanword used in all scientific and technical contexts. Directly equivalent to the English term.
エントロピーは常に増大する。
Entropy always increases.
A measure of uncertainty or information content in a message, as used in information theory.
The standard technical term for information entropy. Used in computer science and mathematics.
情報エントロピーは不確実性の尺度である。
Information entropy is a measure of uncertainty.
In information theory contexts, 'エントロピー' alone is often understood, but '情報エントロピー' is clearer.
このデータのエントロピーを計算してください。
Please calculate the entropy of this data.
A state of disorder, randomness, or lack of organization, often used in everyday language.
Literally 'disorder' or 'chaos'. A natural way to express the metaphorical sense of entropy in general contexts.
社会の無秩序が増している。
The entropy of society is increasing.
Means 'chaos' or 'confusion'. Often used for a state of primordial chaos or deep disorder. Slightly more literary.
Means 'messiness' or 'disorder'. Suitable for physical clutter or lack of organization.
机の上の乱雑さが気になる。
I'm bothered by the entropy on my desk.
When using 'entropy' metaphorically to mean general disorder, directly translating to 'エントロピー' can sound unnatural or overly academic. Instead, choose a word like '無秩序' or '混沌' depending on the nuance.
組織の無秩序が問題だ。
The entropy of the organization is a problem.
部屋は混沌としていた。
The room was in a state of entropy.
Sometimes used metaphorically in Japanese, especially in intellectual or geeky conversations, but it may not be immediately understood by all listeners.
Using 'エントロピー' for everyday disorder can sound overly technical or pretentious. Use with caution.
人生のエントロピーが増大している気がする。
I feel like the entropy of my life is increasing.