indelible \in-DEL-uh-buhl\, adjective:
1. That cannot be removed, erased, or washed away.
2. Making marks that cannot easily be removed or erased.
3. Incapable of being forgotten; memorable.
Indelible is from Latin indelebilis, from in-, "not" + delebilis, "that can be obliterated or destroyed," from delere, "to blot out, to efface, to destroy."
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