Pessimism
Mental attitude and philosophical position that dwells on the dark or gloomy side of things, the world or the universe, culminating in a sense of their vanity and nothingness that is sometimes thought to render them unworthy of existence
Pessimism is a mental attitude in which an undesirable outcome is anticipated from a given situation. Pessimists tend to focus on the negatives of life in general. A common question asked to test for pessimism is "Is the glass half empty or half full?" ; in this situation, a pessimist is said to see the glass as half empty, or in extreme cases completely empty, while an optimist is said to see the... Wikipedia