What does "indelible" mean?

Having the quality of being difficult to delete, remove, wash away, blot out, or efface.

What is a synonym for "indelible"?

Common synonyms include: unerasable, unerasable, absorbing, acute, colorfast, constant.

//ɪnˈdɛləbl// adj

adj ·Moderate ·College level

Adjective

1
Having the quality of being difficult to delete, remove, wash away, blot out, or efface.
"This ink spot on the contract is indelible."
2
Incapable of being canceled, lost, or forgotten. figuratively
"That horrible story just might make an indelible impression on the memory."
3
Incapable of being annulled.
"November 7, 1678, Thomas Sprat, a sermon preached at the Anniversary Meeting of the Sons of Clergymen in the Church of St Mary-le-Bow They are […] endued with indelible power from above."