A "hot economy" generally implies that an economy is doing extremely well, with high levels of growth, low levels of unemployment, and rising incomes. Some synonyms for "hot economy" might include "booming economy," "thriving economy," "strong economy," "robust economy," or "buoyant economy." These terms all suggest that the economy is healthy, stable, and expanding, with positive indicators across a range of metrics. Other related terms might include "flourishing economy," "resilient economy," or "dynamic economy," each of which conveys a sense of strength and vitality. Overall, the synonyms for "hot economy" all convey a sense of optimism and positive momentum in economic growth and prosperity.