Hi husak :Originally Posted by husak
i think these definitions can be helpfull to solve your problem:
(1)A sudden or capricious idea; a fancy.
(2)Arbitrary thought or impulse: governed by whim.
(3)A vertical horse-powered drum used as a hoist in a mine.
in my opinion this sound better :An impulsive, often illogical turn of mind:
eg :he bought the house on a whim.