WordWeb Online

1. In a stingy manner
   "their rich uncle treated them rather cheaply";
   - stingily, chintzily, parsimoniously
    
2. In an inexpensive or poor manner
   "a cheaply dressed woman approached him in the bar";
   - tattily, inexpensively
    
3. With little expenditure of money
   "I bought this car very cheaply";
   - inexpensively

Antonym: expensively