definition of
capriciousness

[1] #1 capriciousness n. [unpredictability] the quality of being guided by sudden unpredictable impulses. wn

[2] #2 capriciousness n. [flightiness, arbitrariness, whimsicality, whimsy, whimsey] the trait of acting unpredictably and more from whim or caprice than from reason or judgment; "I despair at the flightiness and whimsicality of my memory". wn