- having the power or quality of deciding; putting an end to controversy; crucial or most important: Your argument was the decisive one.
- characterized by or displaying no or little hesitation; resolute; determined: The general was known for his decisive manner.
- indisputable; definite: a decisive defeat.
- unsurpassable; commanding: a decisive lead in the voting.
Origin of decisive
SynonymsSee more synonyms for decisive on Thesaurus.com
Examples from the Web for decisively
The respectable reformers, meanwhile, know how rare a chance 2016 is to decisively shape our national affairs.The GOP Flees to the Cleve
July 9, 2014
First-time candidate and full-time economics professor Dave Brat decisively defeated the consummate pol by a 55 to 45 margin.Tea Party Cannibalizes Cantor
June 11, 2014
Conversely, the Bridgegate story now clearly and decisively is a real politically motivated scandal.Chris Christie Took His Sweet Time to Find the Truth About Bridgegate
January 9, 2014
But then he very skillfully and decisively throws Carrie overboard to protect the agency.‘Homeland’ Showrunner: ‘We Knew We Had to Plot a New Course’
September 30, 2013
Egyptians were still looking to it to restore order, and to decisively end the Brotherhood protest movement.Thy Hand, Great Anarch!
August 14, 2013
"I cannot take it," answered Allis, decisively, after a pause.Thoroughbreds
W. A. Fraser
"Well, you shouldn't if you were my sister," he repeated, decisively.Quaint Courtships
"Never mind what you came for," Miss Georgie cut in decisively, and laughed.Good Indian
B. M. Bower
“Something has happened to Weedon,” his wife said decisively.White Fang
"Thank you, Doctor," the President Elect said at last, decisively.The Adventurer
Cyril M. Kornbluth
- influential; conclusivea decisive argument
- characterized by the ability to make decisions, esp quickly; resolute
Word Origin and History for decisively
1610s, from Medieval Latin decisivus, from Latin decis-, past participle stem of decidere (see decide). Related: Decisively; decisiveness.