WordWeb Online

1. Manifesting both tragic and comic aspects
   "the tragicomical disparity...between man's aspirations and his accomplishments";
   - tragicomic
    
2. Having pathetic as well as ludicrous characteristics
   "her life...presented itself to me as a tragicomical adventure";
   - tragicomic

See also: humorous, humourous [Brit, Cdn, non-standard], sad