Langimage
English

lightfast

|light-fast|

B2

🇺🇸

/ˈlaɪtˌfæst/

🇬🇧

/ˈlaɪtˌfɑːst/

resistant to light

Etymology
Etymology Information

'lightfast' originates from the combination of 'light' and 'fast,' where 'light' refers to visible illumination and 'fast' means 'firmly fixed or secured.'

Historical Evolution

'lightfast' was formed in modern English by combining the words 'light' and 'fast' to describe materials that do not fade when exposed to light.

Meaning Changes

Initially, it meant 'resistant to light,' and this meaning has largely remained the same in modern usage.

Meanings by Part of Speech

Adjective 1

resistant to fading or discoloration when exposed to light.

The artist chose lightfast paints to ensure the longevity of her artwork.

Synonyms

Antonyms

Last updated: 2025/06/10 13:55