Swerved
Else clues• Changed direction, as a ship
• Deflected erratically
• Deviated
• Deviated from a course
• Deviated from a course, as a ship
• Deviated from planned heading
• Deviated, in a way
• Deviated, nautically
• Slued left and right
• Swerved off course
• Swung at sea
• Swung off course
• Swung, nautically
• Veered off course
• Veered while sailing
• Veered, as a ship
• Went off course
• Went off course, at sea
• Went off course, nautically
• Went temporarily off course
• Zigged from a course