1. Positive traits unique to a specific person, especially in a business setting. A: "This managerial candidate had very glowing references, especially regarding her ability to motivate a team. " B: "Wow, it sounds like she would bring a lot of personal capital to the position."
2. One's authority or trustworthiness. Don't blow your personal capital as a respected physician by backing something that you know is a placebo.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.