The Collaborative International Dictionary
Ineffaceably \In`ef*face"a*bly\, adv. So as not to be effaceable.
Wiktionary
adv. In an ineffaceable manner.
Usage examples of "ineffaceably".
The natural convulsion which did this, the traces of which are ineffaceably written here, must have carried away the broken fragments of the granite I know not where.
I was facing a door about twenty feet distant, which exactly as I opened my eyes, turned slowly on its hinges, and the figure of Uncle Lorne, in his loose flannel habiliments, ineffaceably traced upon my memory, like every other detail of that ill-omened apparition, glided into the room, and crossing the thick carpet with long, soft steps, passed near me, looking upon me with a malign sort of curiosity for some two or three seconds, and sat down by the declining fire, with a side-long glance still fixed upon me.
He knew well, however, that it was not an apparition, that the dead do not come back, and that his sick soul, his soul possessed by one thought alone, by an indelible remembrance, was the only cause of his torture, was what brought the dead girl back to life and raised her form before his eyes, on which it was ineffaceably imprinted.
He knew that, guilty or innocent, a man once suspected is as ineffaceably branded as the shoulder of a galley-slave.