Antonyms of adj colorfast

1 sense of colorfast

Sense 1
colorfast -- (having color that is resistant to fading or running)

INDIRECT (VIA impervious) -> pervious -- (admitting of passage or entrance; "pervious soil"; "a metal pervious to heat")

Similarity of adj colorfast

1 sense of colorfast

Sense 1
colorfast -- (having color that is resistant to fading or running)
       => impervious (vs. pervious), imperviable -- (not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument")