If you're absolutely convinced your team is going to the Super Bowl, you state it with certitude or confidence.

Your team didn't make it? Oh dear, you were guilty of certitude — an absolute conviction that the outcome of the game did not support. In other words, you were a tad cocky. Certitude is very similar to certainty, and often used interchangeably, but there's a hint of danger about certitude; someone who displays it may well be overconfident. Certainty is more certain.

Definitions of certitude

n total certainty or greater certainty than circumstances warrant

cocksureness, overconfidence
Type of:
the state of being certain

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