volatile
Adjective
This term describes a state of unstable tension where a sudden, explosive shift is expected. It suggests a precarious balance that can be shattered by a single spark, whether that spark is a chemical reaction or a provocative comment in a heated argument. In financial or emotional contexts, it conveys a sense of risk and unpredictability. While a stable person is a rock, a volatile person is a storm, shifting from calm to rage without warning. It carries a stronger sense of danger than words like unstable or erratic.