1) the belief that traditional morals, ideas, beliefs, etc., have no worth or value
2) the belief that a society’s political and social institutions are so bad that they should be destroyed.
3) a viewpoint that traditional values and beliefs are unfounded and that existence is senseless and useless
4) a doctrine that denies any objective ground of truth and especially of moral truths.
Given such a powerful presumption against it, moral nihilism should be rejected.