IPA: /dɪˈsaɪsɪvnəs/
KK: /dɪˈsaɪsɪvnəs/
The quality of being able to make decisions quickly and confidently.
Her decisiveness in the meeting helped the team reach an agreement swiftly.
Decisiveness → It is formed from "decidere" (from Latin, meaning to cut off or settle) and the suffix "-ness" (meaning the state or quality of). The word "decisiveness" refers to the quality of being able to make decisions firmly and resolutely, as if cutting off indecision.
Think of the word 'decide' which means to 'cut off' options, and remember that 'decisiveness' is the quality of being able to make firm decisions.