aimlessmainlydisapprovingHe was just aimless and confused after being let go from his position.
purposelessThe job left him feeling unfulfiled and purposeless.
adriftHis son has just been utterly adrift since leaving university.
emptyAfter losing him, I just feel empty inside.
rudderlessThe company was rudderless after the resignation of the CEO.
desultoryformalWe tired of his desultory chatter immediately.
idle“I heard they’re getting a divorce?” “Oh, come off it: that’s just idle speculation.”