1) Compete in a crayon contest 2) Imperviable 3) Impervious 4) Not running 5) Unable to run 6) Unlikely to run 7) What impatient children do 1) Imperviable 2) Impervious 
Non-fading in prolonged exposure to light.
Fade resistant.
Fade resistant.
Holds color even when in the wash. If something is not colorfast, wash it with like colors or alone, always. (See bleed/ing and crock/ing.)
Used to describe a dyed fabric’s ability to resist fading or running due to washing, exposure to sunlight, and other environmental conditions.
adjective having color that is resistant to fading or running
Fade resistant.
maintaining color without fading or running: colorfast textile.