flightiness
 輕浮,瘋狂
 Flight·i·ness, n. The state or quality of being flighty.
    The flightness of her temper.   --Hawthorne.
 Syn: -- Levity; giddiness; volatility; lightness; wildness; eccentricity. See Levity.
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 flightiness
      n : 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: arbitrariness,
           whimsicality, whimsy, whimsey, capriciousness]