decisive

4 definitions • 7 examples

able to make decisions quickly and confidently, or showing this quality:

You need to be more decisive.

a decisive reply

strongly affecting how a situation will progress or end:

These results could prove decisive in establishing the criminal's identity.

a decisive role

a decisive victory

making choices quickly and surely, without having any doubts:

In an emergency, decisive action is called for.

Decisive also means without doubt or question, and of the greatest importance:

DNA test results were decisive in proving his innocence.