Meaning of the word overconfidence in English

What does overconfidence mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

overconfidence

US /ˌoʊ.vɚˈkɑːn.fə.dəns/
UK /ˌəʊ.vəˈkɒn.fɪ.dəns/

Noun

the quality of being too certain of your abilities or of your chances of success:

Example:
He cautioned against overconfidence.