Noun:

1. an impulsive scatterbrained manner

2. a reeling sensation; a feeling that you are about to fall

dizzinessn.头昏眼花；眩晕

sillinessn.愚蠢；糊涂

unsteadinessn.不稳定性；不稳；不定常性；不坚定

shakinessn.震动；颤抖；动摇

instabilityn.不稳定；不安定

frivolityn.轻浮；轻薄；轻佻

capriciousnessn.任性；善变

volatilityn.挥发性；挥发度；轻快；(性格)反复无常

overexcitement过分激动

flightinessn.轻浮；疯狂

foolishnessn.可笑；愚蠢

impulsivenessn.冲动

lightheadednessadj.头昏眼花的；轻率的

vertigon.眩晕

1. In my giddiness to spread the word, I dropped the hint that an expanded universe character was slated to be in the film.
   我轻率地将消息传播了出去，暗示说电影预定要引入一位衍生宇宙角色。