Englishnegativity
noun
one person's negativity and intolerance can have a knock-on effect:
pessimism, defeatism, gloom, gloominess, cynicism, negative thinking, hopelessness, despair, despondency, bleakness, blackness, world-weariness;
lack of enthusiasm, apathy, indifference;
German Weltschmerz;
rare negativeness.
▷antonyms optimism, positiveness.