The quality of being decisive; the ability to make decisions quickly and confidently.
From decisive (from Latin decidere, to decide) + -ness (noun-forming suffix). This abstract noun developed in English to describe the character trait of quick, firm decision-making.
Studies show that people admire decisiveness even when it's wrong—our brains prefer someone who's confidently wrong over someone who's hesitant but right! It's why confident leaders seem more powerful.
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