Dictionary

colorfast

adjective col·or·fast \ˈkə-lər-ˌfast\

: able to keep the same color even if washed, placed in light, etc.

Full Definition of COLORFAST

:  having color that retains its original hue without fading or running
col·or·fast·ness \-ˌfas(t)-nəs\ noun
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First Known Use of COLORFAST

1916

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