- Temerity is being so confident or bold that it may come across as foolish or reckless.
An example of temerity is when you question your boss about a decision he was clearly proud of having made.
Origin: Middle English temeryte from Classical Latin temeritas from temere, rashly, blindly from Indo-European base an unverified form tem-, dark from source Old Saxon thimm, dark, Classical Latin tenebrae, darkness
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Origin: Middle English temerite, from Old French, from Latin temeritās, from temere, rashly.