I presume it means that it would not cease to exist..in other words the person with the disease can not get rid of it!!!
Ceaseless motion.
school seems like its very ceaseless.
The cacophony of the jungle's animals seemed ceaseless.
Beneath Ceaseless Skies was created in 2008.
Ceaseless - 2012 was released on: USA: February 2012
Ceaseless Industry - Fearless Investigation - Unfettered Thought
The cast of Ceaseless - 2012 includes: Kyle Shultz as Neil stunt double
Unstoppable
There is the gerund form, ceasing, but as an adjective it is more often seem as "unceasing" or "ceaseless" -- both negative forms.
2 exactly
ceaseless and cellulose
ceaseless and cellulose