flagitious
adj.
"shamefully wicked, criminal," late 14c., from Old French flagicieus or directly from Latin flagitiosus "shameful, disgraceful, infamous," from flagitium "shameful act, passionate deed, disgraceful thing," related to flagrum "a whip, scourge, lash," and flagitare "to demand importunately," all from PIE root *bhlag- "to strike" (see flagellum). Related: Flagitiously; flagitiousness.
〔李〕[flagiti =shame可耻的事；-ous ⇒“practising shame-ful things做可耻之事的”→] a. shamefully vile；scandalously wicked无耻的；罪大恶极的