1. [informal] Very bad
   "a lousy play";
   - icky [informal], rotten [informal], stinking [informal], stinky [informal], rubbish [Brit, informal], crummy [informal], dire [Brit, informal]
    
2. [informal] Vile; despicable
   "a lousy trick";
   - dirty, filthy, cruddy [informal]
    
3. Infested with lice
   "burned their lousy clothes"

Derived forms: lousiest, lousier

See also: awful, bad, dirty, nasty, soiled, unclean

Encyclopedia: Lousy