overconfident

Anderson pointed out that despite the dangers of overconfidence, it does makes some sense to follow confident people in general.

Though the red tide is rising, overconfidence can swamp even the best campaign strategists.

Overconfidence and complacency are among our deadliest enemies.

Neglect of this or overconfidence has caused many disasters.

We know, however, that nothing is as dangerous as overconfidence, in war or in peace.

Learn from this never to plan, and always to beware of overconfidence.

I am not ashamed to confess that I cried over the loss of this poor little victim of overconfidence in human beings.