失德

verb: to commit a moral fault or transgression, to act wickedly/dishonorably
失德

Page gives both a literary noun/verb sense ('fault; to err') and a separate adjective sense ('wicked, immoral') labeled Cantonese/Southern Min, with a single unified pronunciation section that doesn't map senses to specific dialect readings, so it's unclear which sense(s) the Teochew reading covers.

Usage: literary