pre·cip·i·tan·cy,pre·cip·i·tance /prɪˈsɪpɪtənsɪ/,/-təns/ n. 1. 急促;猛力前进 He ran from the house with startling precipitancy. 他出其不意地从屋里猛冲出去。 2. 贸然性,轻率 The president effected the changes in taxes with a precipitancy that stirred up resistance. 总统贸然实行税制改革,引起了人们的抵制。 3. [precipitancies] 贸然的行动,轻率的做法