PRONE

adj. 1 face down or downwards or chiefly US downward, prostrate, lying down, reclining, recumbent, horizontal, procumbent, Formal or technical decumbent, accumbent She was lying prone, resting between push-ups 2 inclined, apt, likely, liable, disposed, predisposed, of a mind, subject, given, tending, leaning They are prone to petty squabbles