• Became dim
• Became fainter
• Bet against
• Bleached out
• Dimmed
• Dims
• Disappeared gradually
• Dropped back after a promising start
• Dropped from the leader board
• Gradually disappeared
• Grew pale
• In need of a new coat
• Less colorful
• Like aged blue jeans
• Like broken-in jeans
• Like old jeans
• Like old photos
• Like some jeans
• Like well-worn jeans
• Lost brightness
• Lost color
• Lost luster
• Lost vitality
• No longer bright
• No longer sharp
• No longer vibrant
• No longer vivid
• Old, say
• Sun-bleached
• Vivid no more
• Washed out
faded curtains [cushions] - выцветшие шторы [подушки]
faded cheeks - поблёкшие щёки
faded photograph - пожелтевшая фотография
увядший, поблёкший, выцветший
~ curtains {/lang] - выцветшие шторы {подушки}
~ cheeks - поблёкшие щёки
~ photograph - пожелтевшая фотография