light-fast

lightfast

[lahyt-fast, -fahst]
adjective
not affected or faded by light, especially sunlight; colorfast when exposed to light.

Origin:
1955–60; light1 + fast1

lightfastness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To light-fast
Collins
World English Dictionary
light-fast
 
adj
(of a dye or dyed article) unaffected by light

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature