1. marked or stamped incorrectly or with the wrong stamp

1. past tense and past participle of misstamp; to stamp or mark incorrectly

Examples

• The misstamped envelope was returned to the sender.
• The postal worker misstamped several letters this morning.
• We discovered the documents were misstamped with the wrong date.
• The misstamped passport had to be reissued.
• She misstamped the package, so it went to the wrong address.
• The misstamped tickets were exchanged for correct ones.