| Postdate 1. (v. t.) To date after the real time; as, to postdate a contract, that is, to date it later than the time when it was in fact made. 2. (v. t.) To affix a date to after the event. 3. (a.) Made or done after the date assigned. 4. (n.) A date put to a bill of exchange or other paper, later than that when it was actually made. Thesaurus Entries International Date Line, afterlife, antedate, backdate, be dated, bear date, date, date at, date line, date-stamp, dateline, datemark, day, following, foredate, future time, hangover, lag, lateness, make a date, misdate, mistime, next life, point of time, postdating, posteriority, predate, provenience, remainder, sequence, set the date, subsequence, succession, supervenience, supervention, time, update |