pessimism
//ˈpɛsɪˌmɪzəm//
Noun
1
A tendency to see the worst aspect of things or believe that the worst will happen; a lack of hope or confidence in the future.
His pessimism about the economy made him reluctant to invest.
2
A philosophical doctrine that this world is the worst possible world, or that all things naturally tend to evil.
Schopenhauer's philosophy is often associated with pessimism, as he believed that suffering is inherent to existence.