1.AdjectiveOpen (especially to something), unconcealed and/or unprotected (and therefore vulnerable, susceptible)."exposed to light; exposed to water; exposed to abuse; exposed to danger; an exposed path (trail, etc) up the mountain (one with a drop-off on one or both sides); The monastery perched on an exposed cliff.; The soldiers needed to find cover fast. Their current position was very exposed.; The bike chain is open and exposed to tough environmental conditions such as temperature changes, humidity, rain, dirt and road salt.; exposed beam; exposed brick"