1. being careless
behaving/running around willy-nilly
Willy-nilly is an adverb that can be used to talk about something done without planning, something haphazard, seemingly random or careless. "The radio in my car just changes station willy-nilly, one second I'm listening to country music and the next it's smooth jazz."
2. do without having a choice
drawn willy-nilly into conflict
Willy-nilly is an adverb used to say 'whether you like it or not' - "She found herself defending him willy-nilly.".