Overconfidence

//oʊvɚˈkɑnfɪdənts// noun

Definitions

Noun
  1. 1
    An excessive or unwarranted degree of confidence. uncountable, usually

    "My case is, as I have told you, almost complete; but we must not err on the side of over-confidence."

  2. 2
    total certainty or greater certainty than circumstances warrant wordnet

Etymology

From over- + confidence.

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