Adjective
uncracked (not comparable)
Not cracked (in various senses)
That code is still uncracked.
Uncracked concrete is more stable than cracked concrete.
But then the girl moved, and smiled, and pulled her hand from the grate- a gorgeous green stone clutched tightly in her grasp. It was covered with dust and cobwebs, but it was uncracked and unharmed. And, of course, completely fake. Ally Carter