Having or showing a tendency or likelihood
Tending to incur
Is it actually that blue-eyed redheads have the same number of accidents as non-redheads, but brown-eyed redheads are even more clumsy, accident prone, and traffic hazards?
Our family is prone to ongoing disappointment and treason.
The third lay prone so that his face was not visible.
The English people on the other hand were not so prone to foster the money-lending business.
He knelt beside the prone form.