The Greek adjective amarantos (ἀμάραντος) means unfading or not withering — composed of the alpha-privative and marainō (to wither, fade). The amaranth flower was used as a symbol of immortality because it does not fade. Peter uses it to describe the inheritance kept in heaven for believers.
Peter describes an inheritance that is imperishable, undefiled, and unfading (1 Peter 1:4) — amaranton. In a world where all earthly beauty and wealth eventually fades and withers, the heavenly inheritance knows no decay. The Christian's greatest possession cannot fade, for it is secured not by earthly conditions but by the power of God (1 Peter 1:5). This eternal perspective transforms how believers hold earthly things loosely and hope in things above (Colossians 3:1–2).