1) Attenuate 2) Bleached 3) Decreased 4) Dim 5) Lightened 6) Pale 7) Reduced 8) Worn 1) Became dim 2) Became fainter 3) Bleached 4) Bleached out 5) Colorless 6) Colourless 7) Debut single 8) Disappeared gradually 9) Dropped from the leader board 10) Dropped out of contention 11) Grew pale 12) In need of a new coat 13) Less colorful 14) Lightened by sunlight 15) Like aged blue jeans 
• (a.) That has lost freshness, color, or brightness; grown dim. • (imp. & p. p.) of Fade
Fad'ed adjective That has lost freshness, color, or brightness; grown dim. 'His faded cheek.' Milton. « Where the faded moon Made a dim silver twilight.» Keats. 
Previous radar contact is lost
Faded is Black-American slang for a black that fades into a white way of life
Losses of brightness or brilliance of the color(s). Faded Examples
Descriptor for a wine that has suffered insipient oxidation -- i.e. has passed its prime and is declining in quality. 
Term used to describe a fighter past his peak powers.
Usually refers to a fighter who runs out of gas in the later rounds or who, overall in terms of his boxing career, is no longer performing at his best.