arbitrariness

• arbitraryness

From arbitrary +‎ -ness.

arbitrariness (usually uncountable, plural arbitrarinesses)

1. The quality or state of being arbitrary; the extent to which something is arbitrary.

• arbitrarity (much less common)

• “arbitrariness”, in OneLook Dictionary Search.
• “arbitrary”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “arbitrariness” (US) / “arbitrariness” (UK) in Macmillan English Dictionary.
• arbitrary in Britannica Dictionary
• “arbitrariness”, in Wordnik.
• arbitrariness, arbitrarity at the Google Books Ngram Viewer.