D defs.my
Entry 2 senses Webster, 1913

Pessimism

/pĕs'-əm-ĭzˌ-əm/ · Pes·si·mism · IPA /ˈpɛsɪmɪzəm/
01 n. The opinion or doctrine that everything in nature is ordered for or tends to the worst, or that the world is wholly evil; -- opposed to optimism.
  1. 1.
    The opinion or doctrine that everything in nature is ordered for or tends to the worst, or that the world is wholly evil; -- opposed to optimism.(Metaph.)
  2. 2.
    A disposition to take the least hopeful view of a situation.