Indelible
Part of speech: adjective
Definition: having the quality of being difficult to remove, wash away, blot out, or efface; incapable of being canceled, lost, or forgotten. incapable of being annulled
Example sentence: I take the responsibility of choosing seriously because it becomes an indelible part of your body of work. Something has to sing to me.
Ineradicable
Part of speech: adjective
Definition: not able to be eradicated