My least favorite word is "potential." I despise this word.
In mechanical systems, potential is clearly defined. Potential energy is the amount of energy stored in a system. A ball suspended in the air has a measurable amount of potential energy; the higher you raise it, the more potential energy it has that can be converted to kinetic energy as it falls. A compressed spring has a measurable amount of potential energy that is converted to kinetic energy when the spring is released.
And so on. In a mechanical system, potential makes sense.
When it comes to people, potential makes no sense (unless you suspend someone in the air and drop them). This word comes up frequently in the corporate propaganda we get from HR at work, e.g., "Reach Your Peak Potential Through Learning and Development."