Preordain vs Antedated - What's the difference?

As verbs the difference between preordain and antedated

is that preordain is to determine the fate of something in advance while antedated is (antedate).

To determine the fate of something in advance

* 1874 ,

A child! If here the heart turns sick with rath

To see a little one from birth defiled,

Or lame or blind, as preordained to languish

Through youthless life

* foreordain * predestine * predetermine

(head)

(antedate)

(antedat)

To occur before an event or time; to exist further back in time

To assign a date to a document or action earlier than the actual date; to backdate

* predate

* postdate

Prior date; a date antecedent to another which is the actual date.

(obsolete) anticipation

(John Donne)

----