WordWeb Online

1. Manifesting both tragic and comic aspects
   "the tragicomic disparity...between man's aspirations and his accomplishments";
   - tragicomical
    
2. Having pathetic as well as ludicrous characteristics
   "her life...presented itself to me as a tragicomic adventure";
   - tragicomical
    
3. (drama) of or relating to or characteristic of tragicomedy
   "a playwright specializing in tragicomic drama"

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

Encyclopedia: Tragicomic