blunt adj.
1. not sharp: having a cutting edge or point that is not sharp
2. insensitively frank or honest: very frank or straightforward and showing no delicacy or consideration
blunt v.
1. make something less sharp: to make the cutting edge or point of something less sharp
2. transitive verb lessen or weaken something: to make something such as a sense or an emotion less effective or less intense
So, there must be something wrong with the phrase. Maybe you have got lost some other words. Just check it. I really hope it will be helpful.