Weltschmertz \Welt"schmertz`\ (v[e^]lt"shm[e^]rts`), n. [G., fr. welt world + schmertz pain. See {World}; {Smart}, v. i.] Sorrow or sadness over the present or future evils or woes of the world in general; sentimental pessimism. [Webster 1913 Suppl.]