Temerity suggests a boldness that exceeds the limits of confidence into recklessness or disrespect. She showed temerity by interrupting the director mid-speech.
Pro Tip 2/3
Negative Connotation
While boldness can be positive, temerity often implies negative judgement of someone's behavior. His temerity in taking credit for others' work angered his colleagues.
Pro Tip 3/3
Context Sensitive
The appropriateness of temerity depends on context; in some situations, it might be admired. In the startup world, investors sometimes praise the temerity of young entrepreneurs.