Vicissitude
Vicissitude is a noun that denotes a change of circumstances or fortune, often implying a turning point or alternation between opposite states. It can refer to variations in any domain—personal life, social conditions, political events, or natural processes—and is frequently used in discussions of fortune or fate. The sense emphasizes irregularity or unpredictability rather than a steady progression.
The word comes from French vicissitude, via Latin vicissitudo from vicis meaning change or alternation. It
In literature and philosophy, vicissitude often frames the human condition as subject to fortune’s shifts: prosperity
See also: fluctuation, variation, reversals, mutability, contingency.