arbitrariness
1. [ noun ] the trait of acting unpredictably and more from whim or caprice than from reason or judgment
Synonyms: whimsicality whimsy whimsey capriciousness flightiness
Examples:

"I despair at the flightiness and whimsicality of my memory"

Related terms: irresponsibility
Similar spelling:   arbitrarily
  arbitrator
  arbitrager
  arbitrable
  arbitrative
  arbitration
  arbitrageur
  arbitrational
  arbitrement
  arbitrament