Indelibility :: Indelibility (n.) The quality of being indelible.
Indelible :: Indelible (a.) That can not be removed, washed away, blotted out, or effaced; incapable of being canceled, lost, or forgotten; as, indelible characters; an indelible stain; an indelible impression on the memory..
Indelible :: Indelible (a.) That can not be annulled; indestructible.