1. to date (a document, check, etc.) with a date later than the actual date of writing
2. to occur or exist at a time later than something else

Examples

• She postdates her rent check by three days each month.
• The bank allows customers to postdate checks for future payments.
• This archaeological evidence postdates the Roman occupation.
• The new building postdates the original structure by fifty years.
• He postdated the contract to ensure it would take effect next week.
• The fossil discovery postdates previous findings in the region.
• Many businesses postdate invoices to align with billing cycles.