decisive
/dɪˈsaɪsɪv/
adjective
Britannica Dictionary definition of DECISIVE
[more decisive; most decisive]
1
:
able to make choices quickly and confidently
-
You must be decisive and persistent to succeed in this competitive field.
-
I stood there wondering what to do, but my sister was more decisive and immediately went to the phone.
-
a decisive leader
-
In emergency situations, one must be able to take decisive action. [=to act quickly and with confidence]
—
opposite indecisive
2
:
causing something to end in a particular way
:
determining what the result of something will be
-
She cast the decisive [=deciding] vote.
-
The fight ended with a decisive blow.
-
the decisive battle of the war
-
The poverty of his childhood played a decisive role in his adult life.
-
The meeting is seen as a decisive step toward a peace treaty.
◊ A decisive factor is a reason to make a particular choice or decision.
— decisiveness
noun
[noncount]