vul·ner·a·ble
[vuh’l-ner-uh-buh‘l]

–adjective

1. capable of or susceptible to being wounded or hurt, as by a weapon: a vulnerable part of the body.

2. open to moral attack, criticism, temptation, etc.: an argument vulnerable to refutation; He is vulnerable to bribery.

3. (of a place) open to assault; difficult to defend: a vulnerable bridge.

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