Definition of colour fast in English:

colour fast

Line breaks: col¦our fast


  • Dyed in colours that will not fade or be washed out.
    More example sentences
    • One word of caution - batiks are not colour fast.
    • Be sure to test in an inconspicuous area prior to use, to ensure that the fabric is color fast.
    • Natural dyes are not sufficiently colour fast to use in the manufacture of our carpets.


colour fastness

More example sentences
  • Remember peroxide is bleach so test an inconspicuous spot first for color fastness.
  • Test your different textiles for color fastness and degradation to long-term ultraviolet exposure.
  • How do you find out the color fastness of the pigment in your favorite tube of paint?

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Word of the day razz
Pronunciation: raz
tease (someone) playfully