O şu anda durdurulamaz fakat sorun onun kariyerinin zirvesinde ne kadar kalacağıdır. - He's unstoppable right now but the question is how long he can remain at the pinnacle of his career.
Onlar durdurulamaz görünüyor. - They seem unstoppable.
Something that is unstoppable cannot be prevented from continuing or developing. The progress of science is unstoppable. the country's seemingly unstoppable economy. unable to be stopped