Definition of parliamentariness in US English:

parliamentariness

noun

rare
  • The quality or state of being parliamentary; conformity to parliamentary procedure; appropriateness for parliament.

Origin

Early 18th century; earliest use found in Nathan Bailey (d. 1742), lexicographer and schoolmaster. From parliamentary + -ness.

Pronunciation

parliamentariness

/ˌpɑːlɪˈmɛnt(ə)rɪnɪs/