Describes Ink That Can't Be Removed or Altered
This page is the CodyCross answer for the clue below from Airport, Group 460, Puzzle 1 (Baggage Tags).
Question is: Describes Ink That Can't Be Removed or Altered
and the answer is: INDELIBLE
Word Meaning:
INDELIBLE — Having the quality of being difficult to delete, remove, wash away, blot out, or efface.
Definitions from Wiktionary.