Translation guide
The English phrase "back seat" can refer to a physical seat in a vehicle or a metaphorical position of non-involvement. This guide covers both literal and figurative uses, with natural Japanese equivalents.
Referring to the seat(s) in the back of a car, bus, etc.
Standard term for the back seat of a vehicle. Neutral and widely understood.
子供は後部座席に座ってください。
Please sit in the back seat, children.
後部座席は少し狭いです。
The back seat is a little cramped.
More casual and general. Can be used for any back seat, not just vehicles.
バスの後ろの席に座ろう。
Let's sit in the back seat of the bus.
Similar to 後ろの席, but explicitly uses 座席 (seat). Slightly more formal.
後ろの座席に荷物を置かないでください。
Please don't put luggage on the back seat.
To become less important or to let something else take priority.
Means 'to become secondary' or 'to take a back seat'. Very common and natural.
仕事が忙しくて、趣味は二の次になっている。
Work is so busy that my hobbies have taken a back seat.
Means 'to be put off' or 'postponed', implying lower priority. Often used when something is delayed in favor of something else.
緊急の問題が起きて、会議は後回しになった。
An urgent issue came up, so the meeting took a back seat.
Literally 'priority goes down'. More formal and explicit.
健康管理は仕事より優先順位が下がりがちだ。
Health management tends to take a back seat to work.
Means 'to become less prominent' or 'fade into the background'. More metaphorical.
新製品の登場で旧モデルは影が薄くなった。
With the new product release, the old model took a back seat.
A passenger who gives unwanted advice to the driver; a person who tries to control something they are not responsible for.
General term for someone who butts in or gives unsolicited advice. Not limited to driving.
彼はいつも口出しする人で、うんざりだ。
He's always a back-seat driver; it's annoying.
Someone who gives orders or directions, often unwanted. Can be used for back-seat drivers.
運転中に指図する人は危険だ。
A back-seat driver is dangerous.
Direct loanword from English. Understood by some, but not as natural as native phrases.
彼女はバックシートドライバーだから、一緒にドライブしたくない。
She's a back-seat driver, so I don't want to go for a drive with her.
Do not translate 'take a back seat' literally as 後部座席を取る. Use the idiomatic phrases provided.