What does pessimistic mean

tending to see the worst aspect of things or believe that the worst will happen.

Pessimism isn't just about negative thinking. Personality science has revealed it also includes a focus on outcomes – that is what you expect will happen in the future. While optimists expect positive outcomes will happen more often than not, pessimists expect negative outcomes are more likely.

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.the foreign translations

he will find out what went wrong or happened and how.