Synonyms for Careworn:

adj.

all (adjective)
drawn, worn, raddled, haggard.
haggard (adjective)
drawn, wan, tired.
hollow-eyed (adjective)
worn.

n.

homesick, wistful, melancholy, gloomy, subdued, sorrowful, unhappy, bleak, miserable. hollow-eyed, wan. anxious (noun)
sad, troubled.
careworn (noun)
haggard, raddled, worn, drawn, tired.

Other synonyms:

hollow-eyed, sad. wan. worried
troubled.
Other relevant words:
gloomy, bleak, wan, sorrowful, unhappy, subdued, homesick, melancholy, troubled, hollow-eyed, wistful, sad, miserable.

Usage examples for careworn

  1. Ratcliffe looked at her a moment with a troubled and careworn face. – Democracy An American Novel by Henry Adams
  2. In the Marquis, with his eager eyes and careworn forehead, he could hardly recognize the fresh- cheeked and rosy pupil with the active limbs, whom he remembered. – The Magic Skin by Honore de Balzac
  3. It seemed as if everybody and everything were ranged against her; and guilty, careworn lonely, she shrank into her shell. – The Getting of Wisdom by Henry Handel Richardson