Volcanoes can be either active, dormant, or extinct. Dormant would be the closest match to the description "unlikely to erupt".
If it 'unlikely' to erupt again but it could, it's dormant.
Extinct
The volcano is said to be extinct if it hasn't erupted for at least 10,000 years.
As it is regarded as an extinct volcano, it is unlikely that it will erupt again.
An extinct volcano is one that will never erupt again.
active- or live volcano is one that is erupting or has shown signs that it may erupt in the near future dormant- volcano to awaken in the future and become active extinct- or dead volcano is unlikely to erupt again
It is extremely unlikely. Currently, there is no indication that something is developing.
They term this an extinct volcano if there is no longer a supply of magma to the chamber underlying the volcano or dormant if there is (as there is therefore still a chance of a future eruption).
They can erupt anytime, when magma rises from the mantle and spews out of the volcano.
It depends, a volcano can erupt once and never erupt again. Or, a volcano can erupt multiple times a day.
Active volcanoes are likely to erupt at any time where as inactive volcanoes are 'asleep' or haven't erupted much in the past and are unlikely to erupt in the near future.
Yes. If it doesn't erupt and never has erupted then it is not a volcano.