The album is named after a character the band created called Blurryface. According to Joseph, he "represents all the things that I as an individual, but also everyone around, are insecure about." Joseph wears black paint on his hands and neck during his live shows and music videos for the album, to represent Blurryface, saying: "Very dramatic, I know, but it helps me get into that character." Source: https://en.wikipedia.org/wiki/Blurryface#Name So I think the name just means you don't want to stand out, you want to blur into the background so that you won't be noticed so that your insecurities go unnoticed too.

I am just wondering what are the difference among " dim; vague; indistinct; obscure; fuzzy; blurred". If you know, please follow

Never heard of the word! Blurry = means out of focus https://en.oxforddictionaries.com/definition/blurry Face = your face https://en.oxforddictionaries.com/definition/face Therefore, blurryface is a face that is out of focus. Like I said, it is not a word I have heard of.