capriciousness

capriciousness
    n 1: the quality of being guided by sudden unpredictable
         impulses [syn: {capriciousness}, {unpredictability}]
    2: 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" [syn:
       {flightiness}, {arbitrariness}, {whimsicality}, {whimsy},
       {whimsey}, {capriciousness}]
    

Capricious \Ca*pri"cious\ (k[.a]*pr[i^]sh"[u^]s), a. [Cf. F.
   capricieux, It. capriccioso.]
   Governed or characterized by caprice; apt to change suddenly;
   freakish; whimsical; changeable. "Capricious poet." --Shak.
   "Capricious humor." --Hugh Miller.
   [1913 Webster]

         A capricious partiality to the Romish practices.
                                                  --Hallam.

   Syn: Freakish; whimsical; fanciful; fickle; crotchety;
        fitful; wayward; changeable; unsteady; uncertain;
        inconstant; arbitrary. -- {Ca*pri"cious*ly}, adv. --
        {Ca*pri"cious*ness}, n.
        [1913 Webster]