Definition of flagitious in English:

flagitious

adjective

  • (of a person or their actions) criminal; villainous.

    • ‘Such a flagitious attempt could only be made under some general pretence by a state legislature.’
    evil, sinful, immoral, wrong, morally wrong, wrongful, bad, iniquitous, corrupt, black-hearted, ungodly, unholy, irreligious, unrighteous, sacrilegious, profane, blasphemous, impious, base, mean, vile
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Origin

Late Middle English: from Latin flagitiosus, from flagitium importunity, shameful crime from flagitare demand earnestly.

Pronunciation:

flagitious

/fləˈjiSHəs/