fallible

It describes the inherent possibility of error. Unlike 'wrong' (which is a state) or 'incorrect' (which is a result), 'fallible' refers to a permanent capacity or vulnerability to failure. It often carries a humbling, humanizing tone. It is frequently used in philosophical or professional contexts to remind people that no matter how expert someone is, they are still subject to human limitation. While it describes the ability to fail, it is generally neutral rather than negative. To call someone fallible is not necessarily an insult; it is often a statement of fact about the nature of being human.