optimists are always getting their hopes up, setting high goals, but when they undoubtedly fail, they just have that mouch more to be depressed about. pessimists on the other hand always anticipate the worst and never set their goals high, that way when they fail they have less to be depressed about. as an added bonus, if a pessimists sets their goals low and actually achieves or surpasses them, they will be even happier
bob is an optimist and he hopes to get a 90% on the test bill is a pessimists and doubts if he'll even pass the test both bob and bill get a 70% on the test, which makes bob sad because he missed his goal by 20%, bill on the other hand is exstatic because not only did he pass, but he got a B-.
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.