Pronounced: tahk-SAH-fuh-lite, noun
Notes: I know of at least one recent high-school graduate who should know this word… do you?
An unperson is “a person regarded as nonexistent”
Background / Comments
This comes from George Orwell’s book “1984”; he coined this word as a noun. A much more common synonym is nonperson.
Although the verb form goes way back to the mid-1600s (meaning “to depersonalize”), it was first used as a noun in 1949.