unfading
adjectiveUK /ʌnˈfeɪdɪŋ/
US /ʌnˈfeɪdɪŋ/
Something that is unfading never loses its color or brightness.
The unfading paint on the old sign still looked bright after many years.
OTHER MEANINGS
2. Never losing strength or freshness.
Her unfading smile cheered everyone in the room.
3. Remembered forever; not forgotten.
The hero's unfading courage inspired the whole town.
4. Not becoming weaker or less vivid over time.
The unfading memory of that summer stayed with him.