overconfidence
Noun
Meaning
Excessive confidence; too great reliance or trust.
Source: Webster's dictionarySynonyms
Antonyms
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Examples
The illusion that we understand the past fosters overconfidence in our ability to predict the future.
Sometimes it's difficult to accept, to recognise one's own mistakes, but one must do it. I was guilty of overconfidence and arrogance, and I was punished for that.
A certain death of an artist is overconfidence.
It is pretty well established that there is an overconfidence effect. ... You don't have the competence to assess your own competence. ... you need competence in order to assess your own competence. ... Everyone has the Dunning-Kruger effect.
Courage is willingness to take the risk once you know the odds. Optimistic overconfidence means you are taking the risk because you don't know the odds. It's a big difference.
If overconfidence can cause the Roman Empire to fall, I ought to be able to get a ground ball.