Translation guide
The English word "unconnected" describes things that are not physically joined, not logically related, or not associated with each other. This guide helps learners express these ideas naturally in Japanese.
Describing objects, parts, or systems that are not attached or connected to each other.
The most common and neutral way to say something is not connected. Uses the verb つながる (to be connected) in the negative te-iru form.
このパイプは水道につながっていない。
This pipe is not connected to the water supply.
The two rooms are not connected.
A technical term meaning 'not connected' or 'unconnected', often used in IT, electronics, or formal contexts.
未接続のデバイスが検出されました。
An unconnected device was detected.
Passive form of 接続する (to connect), meaning 'is not connected'. Slightly more formal than つながっていない.
このコンピューターはネットワークに接続されていない。
This computer is not connected to the network.
Describing ideas, events, or facts that have no logical connection or relevance to each other.
Literally 'there is no relation'. The most common way to say two things are unrelated or have nothing to do with each other.
その話は今の議論とは関係がない。
That story is unconnected to the current discussion.
彼の意見は事実と関係がない。
His opinion is unconnected to the facts.
A more emphatic way to say 'unrelated' or 'irrelevant'. Often used in formal or written contexts.
その二つの事件は無関係だ。
The two incidents are unconnected.
Means 'lacking coherence or context'. Used when something seems random or out of place.
彼の発言は脈絡がなくて理解できなかった。
His remarks were unconnected and I couldn't understand them.
Describing people, organizations, or things that are not linked by membership, partnership, or association.
Means 'not involved' or 'not associated'. Used for people or groups not connected to an activity or organization.
彼はそのプロジェクトに関係していない。
He is unconnected to the project.
Attributive form meaning 'unrelated' or 'unconnected'. Often used to modify nouns.
無関係の第三者
an unconnected third party
Literally 'there is no connection'. Can be used for social or organizational ties.
あの会社とは何のつながりもない。
We have no connection with that company.
Describing things that are not continuous, such as a series of events or a narrative.
Plain negative form of つながる, meaning 'does not connect'. Used for things that don't form a continuous sequence.
話の前後がつながらない。
The story doesn't connect (is unconnected).
Means 'lacking consistency'. Used when ideas or actions are not logically connected.
彼の説明には一貫性がない。
His explanation is unconnected (lacks consistency).
The word 非接続 (ひせつぞく) exists but is rarely used and sounds unnatural. Use つながっていない or 接続されていない instead for physical connections.
非接続のケーブル
unconnected cable (unnatural)