unsaw

Verb

unsee (third-person singular simple present unsees, present participle unseeing, simple past unsaw, past participle unseen)

1. (transitive) To undo the act of seeing something; to erase the memory of having seen something, or otherwise reverse the effect of having seen something.
   • We have shown the world, and it cannot be unseen, it cannot be unknown, it cannot be forgotten, that Christianity cannot be defended on any ground where Infidelity can get an inch of fair play against it.1829, Robert Taylor, “Infidel Mission.—Fifteenth Bulletin”, in The Lion, volume IV, number 10, page 304