AntonymOptimist ↔ Pessimist
A person who expects good things to happen.
Meera is an optimist; she thinks the rain will stop soon.
A person who expects bad things to happen.
The pessimist in our group was sure we'd miss the bus.
Remember: These name people. For the attitude, use optimistic and pessimistic: 'She is optimistic', not 'She is optimist'.
Quick check
Meera is an ____; she thinks the rain will stop soon.