Definition from Wiktionary, the free dictionary
supersecure (not comparable)
- Having an extremely high level of security.
2009 January 24, Mark Mazzetti, “Where Will Guantánamo Detainees Go?”:
- Those include 9 detention centers that hold defendants awaiting trial, 21 high-security penitentiaries and a supersecure prison in Florence, Colo., where several convicted terrorists are already locked up.
having an extremely high level of security