What's the definition of 'failed state'? For example Venezuela had hyperinflation a couple of years ago and people couldn't access everyday essentials, Colombia

What's the definition of 'failed state'? For example Venezuela had hyperinflation a couple of years ago and people couldn't access everyday essentials, Colombia was sending toilet paper as aid. My personal experience is that, life has got more expensive and my purchasing power is quite a lot less which is frustrating but not yet massively problematic. I'm at the lower end in terms of income. I have seen in the news that there are a lot of people who are doing worse than I am in this respect but I haven't actually seen that in anyone around me.