All at sea ALL0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ In a broader sense, it can also be used figuratively to describe a person who is confused, disoriented, or unsure about what to do in a particular situation. Categories: Nautical SayingAlternative Meanings: All at sea All at sea is a nautical term for a situation where a ship or boat is adrift or lost at sea without any clear direction or sense of location. « Back to Glossary Index