noun
weariness with life; world-weariness; pessimism
A somewhat literary or formal term for a feeling of being tired of life or the world; often used in compounds like 厭世観 (pessimistic view of life).
彼は厭世的な考えにとらわれている。
He is caught up in pessimistic thoughts.
厭世観に陥ると、何も手につかなくなる。
When you fall into a pessimistic view of life, you can't get anything done.