Bouleversement is a French word that means complete upheaval or radical change. Synonyms for bouleversement include revolution, transformation, upheaval, upheaving, convulsion, cataclysm, metamorphosis, changeover, and sea change. These words all convey a sense of major change or disruption, whether it's in the form of a political upheaval or a personal transformation. Each synonym offers a slightly different shade of meaning, but they all imply a significant alteration from the status quo. Whether you're talking about a revolution in society or a personal transformation, these synonyms can help you communicate the magnitude of change that's taking place.