A Pessimist is a Person who will Generally, most of the time, see the Negative, Bad, Flaw-filled or Imperfect about Virtually Anything, no matter how Neutral or Positive it could be, however, a Pessimist is not always
Pessimistic.
Being a Pessimist is not always bad either, everyone's
Pessimistic and Negative sometimes, just not as much as a Pessimist, Pessimism can be good when you have to think Realistic about something, but sometimes it can be very bad and
extremely Annoying to hear someone using Pessimism.