2ADV [usually ADVERB after verb]随意地;胡乱地 If someone does something willy-nilly, they do it in a careless and disorganized way, without planning it in advance. 随意地;胡乱地
Clerks bundled papers into files willy-nilly.
职员们随意地将文件塞进文件夹里。
SYN haphazardly, at random, randomly, without order