Crossword Genius

Unfading (4)

Ross

I believe the answer is:

fast

'unfading' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for fast that I've seen before include "Firm < moving rapidly" , "Refuse to eat - quickly" , "Sporting quickie?" , "Renounce food; quick" , "Quick - abstain from food" .)

I've seen this clue in the Newsday.com and The New York Times.
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