Which type of volcano is described as having no chance of erupting again?

An inactive volcano is defined as one that has not erupted for a significant period of time and is considered unlikely to erupt again in the future. Geologically, an inactive volcano is typically one that shows no signs of volcanic activity, such as seismic activity, gas emissions, or ground deformation. While it is important to note that "inactive" does not guarantee absolute certainty that the volcano will never erupt again, it is generally accepted in volcanology that these volcanoes are not expected to pose a threat.

In contrast, active volcanoes are those that have erupted recently or show signs of future eruptions, and a caldera is a large depression formed after the eruption of a volcano. A laccolith, on the other hand, is a type of intrusion of magma that has pushed through surrounding rock layers but does not involve explosive eruptions. Understanding these definitions helps clarify why an inactive volcano is viewed as having no chance of erupting again.