imperishableness

/ɪmˈpɛrɪʃəbəlnəs/
noun
  1. The quality of being impossible to destroy, decay, or die; lasting forever.
    • The imperishableness of the ancient stone monuments amazed the archaeologists.
    • Many religions teach the imperishableness of the human soul.
    • The artist hoped to achieve a kind of imperishableness through her timeless paintings.