Emphatic means expressing strong feelings or opinions in a forceful and convincing way. It can also refer to something that is emphasized, which means it is given special importance or highlighted.
On a side note, Akpom and Toral scoring with emphatic finishes on their debut's, Crowley a brilliant break through midfield followed by a tidy (ish) assist. (justarsenal.com)
Indeed, the visitors had their chances to secure a more emphatic win. (arsenal.com)
Whitehall sources suggested that May had been urged to take a harder stance over Brexit by cabinet colleagues who have argued that a rerun of the referendum would result in an even more emphatic victory for Brexit, in the region of 60 % -40 %. (theguardian.com)