unmanned

adjective3 コロケーション平均頻度: 7.6
unmanned aircraft8.5

A remotely piloted or self-piloted aircraft, often referred to as a drone.

unmanned spacecraft7.2

A vehicle designed for travel in outer space that does not carry a human crew.

unmanned mission7.0

A task or journey, especially in space or military contexts, conducted without a human crew.