Pretentious Know-It-All
A lot of people want to act like a know-it-all in front of everybody. I don’t know what it is but maybe, it feeds their ego and their thirst for validation. It becomes worse when they try to argue with you about something from your field of expertise even when they don’t have any idea about it.
Pretentious know-it-all are one of the worst kinds of people you will ever meet. They will try to argue with you about something you’re good at in front of everyone just to boost their ego. I mean, if you don’t have any idea about a certain subject, isn’t it better to just shut up and let people who actually know something do the talking?