unpreventable
un-pre-vent-a-ble
adjective
Impossible to stop or avoid from occurring, despite efforts to do so.
"The accident was an unpreventable tragedy."
Thesaurus
Antonyms: preventable
un-pre-vent-a-ble
Impossible to stop or avoid from occurring, despite efforts to do so.
"The accident was an unpreventable tragedy."
Antonyms: preventable