colourfast

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A form of colorfast — Having colors that have been dyed or applied to the material in a way that will prevent them from being washed out, running, or fading.

OriginEnglish fast ← Middle English fast ← Old English fæst →
Scrabble 15
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Meanings

adjectivecolourfast (comparative more colourfast, superlative most colourfast)

comparative more colourfast · superlative most colourfast

  1. alternativeAlternative spelling of colorfast (Items with dyes or pigments that are capable of producing a stable colouring effect.)

Origin

  1. Englishcolour
  2. Proto-Germanic*fastuz
  3. Proto-West Germanic*fast
  4. Old Englishfæst
  5. Middle Englishfast
  6. Englishfast
  7. Englishcolourfast

From colour + fast.

Full word history & related roots →
Cite this entry
APA

colourfast. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/colourfast

MLA

“colourfast.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/colourfast. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “colourfast,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/colourfast.

Source: colourfast on Wiktionary, CC BY-SA 4.0.