To be unmoored is to feel untethered and uncertain, like a balloon that has been let go, drifting aimlessly through the sky.
The word unmoored comes from the world of sailing, where it describes a boat set loose from its anchor, left to float freely in the sea. In a figurative sense, unmoored refers to feeling confused or disoriented, like someone adjusting to life in a new city or grappling with a major change that disrupts their sense of stability.