It is said to be dormant.
Simply an "active" Volcano. If it has NOT erupted for a long time it can be a "dormant" or "extinct" Volcano.
The volcano is said to be extinct if it hasn't erupted for at least 10,000 years.
A dormant volcano.
A volcano that has erupted within historic time is an Active Volcano.
it is true that a active volcano is one that has probably not erupted in a long time but could still erupt again, and a volcano that has not erupted since the last eruption on its due date to erupt it is classed as an extinct volcano or more commonly known as a mountain.
That volcano is likely to erupt again. Every volcano is different ,research on the volcano and when was the last time it erupted and then add 500 to 1000 years.
Dormant volcano
No. Weathering will gradually destroy a volcano that has nor erupted for a long time.
The opposite of an active volcano is an extinct volcano, which is a volcano that has not erupted in a long time and is not expected to erupt again.
quiescent
A volcano that has erupted recently is considered active. In the time before it erupted, if it had not previously erupted in historic times, it is considered dormant.
I think it hasn't erupted in a long time