WordWeb Online

1. As might be expected
   "naturally, the lawyer sent us a huge bill";
   - of course, course
    
2. According to nature; by natural means; without artificial help
   "naturally grown flowers"
    
3. Through inherent nature
   "he was naturally lazy";
   - by nature
    
4. In a natural or normal manner
   "speak naturally and easily";
   - normally

Antonym: artificially, unnaturally

Encyclopedia: Naturally, Sadie