noun
unmanned store; automated shop
A retail store that operates without on-site staff, often using self-checkout or vending-machine technology.
最近、駅前に無人店が増えている。
Recently, unmanned stores have been increasing in front of the station.
この無人店は24時間営業で、支払いはキャッシュレスだけだ。
This automated shop is open 24 hours and only accepts cashless payments.
Compound of 無人 (むじん, 'unmanned') and 店 (てん, 'shop'). The exact historical derivation is straightforward; the term is a modern coinage reflecting the concept of staffless retail.