capriciousness
(noun)
noun
1. the quality of being guided by sudden unpredictable impulses
Similar word(s): unpredictability
Definition categories: attribute, changefulness, inconstancy
2. the trait of acting unpredictably and more from whim or caprice than from reason or judgment
Similar word(s): arbitrariness, flightiness, whimsey, whimsicality, whimsy
Definition categories: attribute, irresponsibility, irresponsibleness