LEARNit Dictionary

unavailability

noun
1
the fact that something cannot be obtained
عدم دسترسی, نبود امکان دسترسی
2
the fact that somebody is not able or not willing to see, meet or talk to somebody
عدم دسترسی, غیرقابل دسترسی بودن
The trial was adjourned due to the unavailability of a key witness.