When something goes adrift, it means it has become off-course or out of control. Some synonyms that can be used in place of the phrase "go adrift" to convey a similar meaning are: go astray, lose direction, stray from the path, veer off course, drift away, wander off, lose one's way, lose control, and sail off course. Each of these phrases conveys a sense of losing one's bearings or control, and they can be used in different contexts, such as when discussing a boat or ship that has drifted away from its intended course, or a person who has become lost or disoriented.