vt to precede in time.
2. antedate ·noun anticipation.
3. antedate ·noun prior date; a date antecedent to another which is the actual date.
4. antedate ·vt to anticipate; to make before the true time.
5. antedate ·vt to date before the true time; to assign to an earlier date; thus, to antedate a deed or a bond is to give it a date anterior to the true time of its execution.