Translation guide
The English term "pseudoscience" refers to beliefs or practices mistakenly regarded as being based on scientific method. In Japanese, the most common equivalent is 疑似科学 (giji kagaku), but other terms like エセ科学 (ese kagaku) and ニセ科学 (nise kagaku) carry different nuances. This guide explains how to express the concept naturally depending on context.
To refer to a field or practice that falsely claims to be scientific, in a neutral or academic context.
The standard, neutral term for pseudoscience. Used in academic and formal contexts. Literally 'pseudo-science'.
占星術は疑似科学の一種と見なされている。
Astrology is considered a type of pseudoscience.
An alternative kanji form of 疑似科学, but 疑似科学 is more common.
擬似科学と疑似科学は同じ意味です。
擬似科学 and 疑似科学 have the same meaning.
To strongly criticize something as fake or fraudulent science, often in informal or opinionated contexts.
A dismissive term meaning 'fake science' or 'sham science'. Carries a stronger negative connotation than 疑似科学. Common in media and everyday speech.
その主張はエセ科学に過ぎない。
That claim is nothing but pseudoscience.
Literally 'fake science'. Similar to エセ科学 but can be slightly more colloquial. Often used in critical contexts.
ニセ科学に騙されないでください。
Don't be fooled by pseudoscience.
To describe a claim, method, or field as pseudoscientific.
The adjectival form of 疑似科学. Used to modify nouns, e.g., 'pseudoscientific method'.
それは疑似科学的な説明だ。
That's a pseudoscientific explanation.
Adjectival form of エセ科学, carrying a dismissive tone.
エセ科学的な健康法には注意が必要だ。
You need to be careful with pseudoscientific health practices.
疑似科学 is the most neutral and academic term. エセ科学 and ニセ科学 are more emotional and dismissive, often used in debates or media to discredit something. エセ科学 is slightly more common in written criticism, while ニセ科学 appears in both speech and writing. In formal writing, stick to 疑似科学.
Do not translate 'pseudoscience' as 偽科学 (its literal kanji reading). While understandable, it is not a standard term and may sound unnatural. Use 疑似科学 instead.