Definition of blackguardism in English:

blackguardism

noun

  • 1Abusive or scurrilous language; swearing. Now historical.

  • 2The characteristic behaviour or manner of a blackguard; ruffianism.

Origin

Mid 18th century. From blackguard + -ism. Compare earlier blackguarding and later blackguardry.

Pronunciation

blackguardism

/ˈblaɡədɪz(ə)m//ˈblaɡɑːdɪz(ə)m/