
Emphatic
Strong Certainty
 Use 'emphatic' when you want to show complete sureness in speech or writing. 
His emphatic tone left no room for further discussion.
 No Hesitation
 'Emphatic' suggests that there's no hesitation or doubt behind what is being said. 
Her emphatic refusal silenced the skeptics.
 Stress Importance
 When something is 'emphatic', it is made to stand out as very important or significant. 
The report included an emphatic warning about the risks.