What mindset reflects a belief that one has never made mistakes at work?

The mindset that reflects a belief that one has never made mistakes at work is best captured by the term "complacent." This term refers to a state of self-satisfaction, often accompanied by a lack of awareness of potential shortcomings or the need for improvement. When someone is complacent, they may be overly comfortable in their role and believe that they are performing well without recognizing that mistakes can and do happen. This mindset can prevent individuals from engaging in self-reflection or seeking feedback, which are essential for personal and professional growth.

In contrast, being confident implies a strong belief in one’s abilities, but it does not necessarily exclude the recognition that mistakes can occur. Self-assuredness carries a similar connotation of belief in one's competence but also does not imply a lack of acknowledgment of errors. Naïveté suggests a lack of experience or understanding, which could lead to an unrealistic view of one's performance, but it doesn't specifically link to the belief of never making mistakes. Therefore, complacency is the most accurate term that aligns with that specific mindset regarding mistakes at work.