caprice (n.)

• arbitrariness
• bee
• capriccio
• capriciousness
• carelessness
• characteristic
• conceit
• contrariety
• crank
• crankiness
• crotchet
• crotchetiness
• fancy
• fantasia
• foible
• freak
• freakishness
• habit
• heedlessness
• humor
• inconsiderateness
• inconsideration
• inconsistency
• maggot
• mannerism
• medley
• megrim
• mood
• moodiness
• notion
• peculiarity
• perversity
• petulance
• potpourri
• quirkiness
• romance
• temper
• thoughtlessness
• trait
• trick
• unthoughtfulness
• vagary
• vein
• whim
• whimsicality
• whimsy