They put themselves down all the time, because deep down inside they think they're not good enough and will never be. 2. They absolutely hate teamwork, and find it hard to work alongside people. 3. They're extremely pessimistic people who always assume the worst about everything. 4. They love their alone time so much that they end up ignoring and even alienating their family and friends for it. 5. They overthink about every little thing , and this ends up making them, and everyone else around them miserable. 6. They can be very stubborn and inflexible. And once they have decided not to do anything, nobody can change their mind. ~ just like everything and everyone else, introverts have flaws too, but their dark side doesn't define who they are. For the most part, their beautiful side ends up shining through...!