WordWeb Online

1. Spoken with emphasis
   "an emphatic word";
   - emphasized, emphasised [Brit]
    
2. Sudden and strong
   "an emphatic no";
   - exclamatory
    
3. Forceful and definite in expression or action
   "the document contained a particularly emphatic guarantee of religious liberty";
   - forceful

See also: accented, assertive, forceful, self-asserting, self-assertive, stressed

Encyclopedia: Emphatic