The quality of being guided by sudden unpredictable impulses - unpredictability
The trait of acting unpredictably and more from whim or caprice than from reason or judgment - flightiness, arbitrariness, whimsicality, whimsy, whimsey
Derived forms: capriciousnesses
See also: capricious
Type of: changefulness, inconstancy, irresponsibility, irresponsibleness