The term 'at sea' can be used to describe a variety of situations. It can refer to being LOST, DISCOMBOBULATED, BAFFLED, PERPLEXED, PUZZLED, AFLOAT, ADDLED, MISSING, or CONFUSED. Being LOST implies not knowing where one is or how to get back to a known location. DISCOMBOBULATED means to be thrown into a state of confusion or disorder. BAFFLED means to be completely PERPLEXED or unable to understand something. PERPLEXED means to be filled with uncertainty or bewilderment. PUZZLED means to be unable to make sense of something. AFLOAT means to be floating on the surface of a body of water. ADDLED means to be CONFUSED or muddled. MISSING means to be unable to find something. CONFUSED means to be unable to think clearly or make sense of something. All of these words can be used to describe the feeling of being 'at sea'.