Force majeure is a term used to describe an unforeseen and uncontrollable event that prevents a party from fulfilling a contractual obligation. Synonyms for force majeure include "act of God," "unforeseeable circumstances," "natural disaster," "emergency," "unavoidable accident," and "unforeseen event." These terms are often used in legal contracts to specify the circumstances under which a party would be excused from liability for non-performance due to factors outside of their control. While the exact phrasing may differ depending on the context, the underlying concept remains the same - a sudden and unforeseeable event that makes it impossible for a party to meet their obligations.