Entry Word: decisive

Function: adjective

Meaning: 1 fully committed to achieving a goal <only a team with a decisive attitude is going to win a state championship> — see determined 1
2 having the power to persuade <a lawyer who knows how to construct the kind of decisive argument that sways a jury> — see cogent
3 serving to put an end to all debate or questioning <the decisive finding of the coroner regarding the cause of death> — see conclusive 1