beat them at something and then proove to them that being cocky isn't a good thing.
Overconfident, from confident, from confide, from fidelity.
overstate overturn overindulge overreact override
== ==
tooooooooooo over confident
OVERCONFIDENT
His superiority complex made him overconfident.
correspondent. overconfident.
Boasting or overconfident language
Hubris.
humility
overactive, overconfident
He was powerfull. He was overconfident.