The Collaborative International Dictionary
Ineffaceable \In`ef*face"a*ble\, a. [Pref. in- not + effaceable: cf. F. ineffa[,c]able.] Incapable of being effaced; indelible; ineradicable.
Wiktionary
a. Incapable of being effaced.
Usage examples of "ineffaceable".
It is you, curious prattlers, who behold the first mysteries, touches, trembling yet chaste, glances that are already insatiable, who begin to trace on the heart, as a tentative sketch, the ineffaceable image of cherished beauty!
Meltham, Green, and Hatfield, and the ineffaceable impression she had wrought upon each of them.
When she saw, on the back and shoulders of the child, great welts and calloused spots, ineffaceable marks of the system under which she had grown up thus far, her heart became pitiful within her.
Melodrama and unsophistication there may be -- we are told of one fastidious Frenchman who could not bear to read Poe except in Baudelaire's urbane and Gallically modulated translation -- but all traces of such things are wholly overshadowed by a potent and inborn sense of the spectral, the morbid, and the horrible which gushed forth from every cell of the artist's creative mentality and stamped his macabre work with the ineffaceable mark of supreme genius.
The wind had diminished by now and the Surprise logged no astonishing number of knots, but there was that ineffaceable memory, dear to all the people, of a whole 150 fathoms being run straight off the reel before the glass was out.