prone adjective BrE /prəʊn/ NAmE /proʊn/ meaning: likely to suffer from something or to do something bad SYNONYM liable prone to something prone to injury Working without a break makes you more prone to error. prone to do something Tired drivers were found to be particularly prone to ignore warning signs. meaning: (formal) lying flat with the front of your body touching the ground The victim lay prone without moving. He was found lying in a prone position. @LearnbyEnglishlearners #word 863 views09:09