Is this true or false and extinct volcano is unlikely to Erupt again?

True. An extinct volcano is one that has not erupted for a significant period of time, often considered to be over 10,000 years, and is unlikely to erupt again in the future. This is in contrast to active and dormant volcanoes, which still have the potential for future eruptions. However, it's important to note that geological assessments can change, and new research may occasionally challenge existing classifications.