world-weary

adjective2

1. •
   Tired of the ways of the world; feeling apathetic or cynical due to one's life experiences.

   • O here Will I set vp my euerlasting rest: And shake the yoke of inauspicious starres From this world-wearied flesh: […] — 1591
2. •
   Bored with life.

   • The drill sergeants are the world weariest of soldiers; and now, goddamit, they have to teach 'girls', no bigger than their kid sisters. — 1988