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.
2. pessimistic
Don't be pessimistic about it. Think positive.
The optimist looks into a mirror and becomes more optimistic, the pessimist more pessimistic.
Sick people tend to be pessimistic.
He is extremely pessimistic and has no aspirations.
I became a Catholic because I'm extremely pessimistic.
The tone of the conversation was very pessimistic.
Don't be so pessimistic.
He has a very negative view of life. He's very pessimistic.
I’m pessimistic. I always expect the worst.
For myself, I do not think we need to be quite so pessimistic.
He's pessimistic by nature
I find British people quite pessimistic.
Whenever I'm feeling pessimistic about the future of the world, I just think of how much has changed even in the time that I can remember.