Lightfast
adj.capable, resilientprofessional
What it means
Able to keep its color when exposed to light over time.
Reach for it when describing pigments or materials whose fade resistance has been established under relevant conditions
The conservator selected lightfast thread for the sunlit textile display.
Choose between these
6- playful
simple product language claims color retention
not when Nonfading sounds absolute; prefer the measured rating when one exists.
- everyday
the broad benefit is long useful life
not when A durable material may remain strong while its color fades.
- everyday
fade-resistant
ordinary exposure causes little loss of color
not when Fade-resistant states a degree of protection and may be weaker than a tested lightfast rating.
- professional
archival
materials are chosen for long-term preservation
not when Archival quality includes acidity and durability and does not guarantee lightfast color.
- professional
dye remains stable against washing, rubbing, or exposure
not when Colorfast covers several causes of color transfer or loss, not light specifically.
- formal
light-stable
technical writing concerns change under illumination
not when Light-stable may refer to chemical performance rather than visible color.
Said against
3- fugitive
- fading
- light-sensitive
It naturally appears in
3- lightfast pigment
The muralist tested each lightfast pigment on the south wall.
- highly lightfast
Highly lightfast inks preserved the map's fine color coding.
- lightfast color
A lightfast color is essential for work displayed near the window.
Where this comes from
- wiktionary, English adjective, resistant to fading under light sense opens in a new tab · retrieved 2026-07-26
The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.