1. Pessimist
The optimist looks into a mirror and becomes more optimistic, the pessimist more pessimistic.
There is no sadder sight than a young pessimist, except an old optimist.
But consider what will happen if the pessimists are wrong.
Dr House, from the hit TV series House M.D., is famous for being a pessimist.
There’s no need to be a pessimist! Things will get better soon!
I am by turns an optimist and a pessimist.
Always borrow money from a pessimist; he doesn't expect to be paid back.