Final answer:
The characteristic not found in high achievers is complacency, as they typically possess perseverance and resilience, whereas complacency denotes a lack of ambition to improve further.
Step-by-step explanation:
One characteristic not found in high achievers is complacency. High achievers typically display qualities such as perseverance and resilience, which enable them to overcome challenges and persist in their goals. A fear of failure can sometimes be seen in high achievers as it may drive them to work harder and avoid stagnation. However, complacency, which implies self-satisfaction with one's achievements and a lack of ambition to strive for further improvement, is generally not associated with high achievement. Studies indicate that attributes like grit and perseverance are significant predictors of success, often more critical than innate talent or intelligence.