dishonest, fake, false, feigned, imaginary, invalid, untrue.
Depending on the definition of real that you use.
an antonym for malinger could be real or true.
real
There is no real antonym for 'oxymoron'; as close as you can come is 'synonym'.
real name
Real food
Original,real and Destroyed
real
actual, real, being, entity
a real story that is true and is not made up
Antonyms are words that mean the opposite of each other. A word can have many antonyms, depending on its meaning or meanings. One antonym for the word real would be the word "fake."
Either non-carbon dating, if that's what you mean, or nothing. But technically, there is no real antonym of "carbon dating".
Chattel is personal property. Its opposite is real property.