capable of or susceptible to being wounded or hurt, as by a weapon

a vulnerable part of the body.

open to moral attack, criticism, temptation, etc.

an argument vulnerable to refutation; He is vulnerable to bribery.

(of a place) open to assault; difficult to defend

a vulnerable bridge.

Bridge . having won one of the games of a rubber.

noun

liability , openness , susceptibility , susceptibleness , vulnerableness