vicissitudea change of circumstances or fortune, typically one that is unwelcome or unpleasantThe autobiography chronicled the many vicissitudes of a life lived across four continents.NoteThe autobiography chronicled the many vicissitudes of a life lived across four continents.Elon.io is an online learning platformWe have an entire course teaching GRE Verbal — Essential Vocabulary grammar and vocabulary.Start learning GRE Verbal — Essential Vocabulary now