Translation guide
A belief that an event or situation is the result of a secret, often sinister, plot by a group of people or organizations. In Japanese, the most common and direct equivalent is 陰謀論 (inbōron). This guide covers how to express the concept naturally, including related terms and usage notes.
To refer to a belief that a secret plot explains an event or situation.
The standard, neutral term for 'conspiracy theory'. Widely understood and used in media and everyday conversation.
He believes in conspiracy theories.
That conspiracy theory spread quickly.
Literally 'conspiracy theory' or 'conspiracy hypothesis'. Slightly more formal or academic than 陰謀論, often used in news or analytical contexts.
Conspiracy theories surround this incident.
A literal translation of 'conspiracy theory', but less common and can sound awkward. Use 陰謀論 instead.
This is a direct translation and may sound unnatural. Prefer 陰謀論.
That's just a conspiracy theory.
To describe a person who believes in conspiracy theories.
To refer to the secret plan itself, rather than the theory about it.
Means 'conspiracy' or 'plot'. Used for the actual secret plan, not the theory. Often appears in compounds like 陰謀論.
They hatched a conspiracy to overthrow the government.
Both mean 'conspiracy theory', but 陰謀論 is more common in everyday language, while 陰謀説 is slightly more formal and often used in journalistic or academic contexts. 陰謀論 is the safer choice for most situations.
Conspiracy theories are often seen on the internet.
Experts denied that conspiracy theory.
The phrase 陰謀の理論 is a direct translation of 'conspiracy theory' but is rarely used and can sound unnatural. Stick to 陰謀論 or 陰謀説.
Few people advocate the conspiracy theory. (unnatural)
That's just a conspiracy theory.
He always talks about conspiracy theories.
The number of people who believe in conspiracy theories is increasing.