fiz·zle /ˈfɪzl/ vi. | n. I vi. 1. 发(微弱的)嘶嘶(或毕卜)声 2. 〈口〉(开始认为很有成功希望的计划等)终于失败，结果不妙 (out) The whole project has fizzled out. 整个计划终于告吹。 3. 萎靡；衰退；丧失活力 The economic boom fizzled. 经济繁荣衰退了。 II n. 1. (微弱的)嘶嘶(或毕卜)声 2. 〈口〉失败，夭折 The plan was a complete fizzle. 计划完全失败了。 [<ME fesilen to break wind silently]