nonsystem

noun

1. That which is not a system.

   “The sooner the better, as the current nonsystem had the city of Bering acting as a leach field for the city of Bering.”

adj

1. (not-comparable)Not of or pertaining to a system.

   “The computer cannot be booted from a nonsystem disk.”

   “There are steep and unsustainable sections that connect these two trail segments and steep nonsystem trail segments between the Shady Trail and the lower leg of the Middle Ridge Trail.”