unavailability
Definitions
The state or quality of not being ready, accessible, or obtainable for use.
The condition of being unable to be reached or contacted.
Examples
The unavailability of the software update caused significant delays in our project timeline.
Due to the sudden unavailability of the keynote speaker, the conference organizers had to reschedule the event.
We apologize for the unavailability of certain items in our inventory during the holiday season.
Synonyms
absence inaccessibility nonexistence shortage lack deficiency vacuity
Antonyms
availability accessibility presence readiness abundance plenty existence