Alternative pleading (or pleading in the alternative) is the legal term[1][2] in the law of the United States for a form of pleading that permits a party in a court action to argue multiple possibilities that may be mutually exclusive by making use of legal fiction.
A pleading in the alternative sets forth multiple claims or defenses either hypothetically or alternatively, such that if one of the claims or defenses are held invalid or insufficient, the other claims or defenses should still have to be answered.