- occurring while under way: the underway activities on a cruise ship.
- under way (def. 1).
- (of a ship) no longer in port, at anchor, etc.; moving.
- no longer at rest, stationary, etc.; in motion; traveling: We'll put our bags in the car and be under way.
- proceeding; in progress: Plans are under way to sell the company.
- in progress; in operation
- in motion
