Translation guide
How to express that something is not related to the current subject or conversation in Japanese.
The speaker wants to indicate that a statement or question is not connected to the main subject.
Literally 'the conversation deviates'. A natural way to say that the discussion has gone off-topic.
話がそれましたが、本題に戻りましょう。
We've gotten off-topic, but let's get back to the main point.
Means 'to deviate from the main topic'. Slightly more formal than 話がそれる.
The speaker wants to label a specific remark as not relevant to the discussion.
Literally 'the conversation derails'. Commonly used when a discussion goes off on a tangent.
話が脱線してしまいました。
We've gone off-topic.
There is no single Japanese word that directly translates 'off-topic' in all contexts. Using オフトピック is understood by some but sounds like English jargon. It's better to use natural Japanese phrases like 話がそれる or 本題から外れる.
その質問は本題から外れています。
That question is off-topic.
Means 'unrelated' or 'has nothing to do with it'. Can be used to dismiss an off-topic remark, but may sound blunt.
Can be perceived as rude if used directly to a person. Softer alternatives like 関係ないかもしれませんが are safer.
それは今の話に関係ないよ。
That's off-topic right now.
A pattern meaning 'putting aside ~'. Used to acknowledge an off-topic point and then return to the main subject.
冗談はさておき、真面目な話をしましょう。
Joking aside, let's talk seriously.
Means 'off the mark' or 'irrelevant'. Can describe a comment that misses the point.
その意見は的外れだ。
That opinion is off-topic.
A noun meaning 'digression' or 'aside'. Used to introduce an off-topic remark intentionally.
余談ですが、昨日面白い映画を見ました。
Off-topic, but I saw an interesting movie yesterday.