Main entry: vulnerable
Definition: susceptible to attack
Usage: a vulnerable bridge
Antonyms: invulnerable
Definition: immune to attack; impregnable
Definition: move so that an opening or passage is obstructed; make shut
Definition: become closed
Antonyms: close
Definition: cause a window or an application to disappear on a computer desktop
Antonyms: close
Definition: finish or terminate (meetings, speeches, etc.)
Antonyms: close, close down, close up, shut down, fold
Definition: cease to operate or cause to cease operating
Antonyms: unopen, shut, closed
Definition: not open
Antonyms: closed
Definition: not open or affording passage or access
Definition: used especially of mouth or eyes
Antonyms: closed
Definition: (set theory) of an interval that contains both its endpoints
Antonyms: inflexible, sturdy, uncompromising
Definition: not making concessions
Antonyms: impenetrable
Definition: not admitting of penetration or passage into or through
Antonyms: unafraid, untroubled, secure
Definition: free from fear or doubt; easy in mind
Antonyms: secure
Definition: free from danger or risk
Antonyms: secure
Definition: not likely to fail or give way
Main entry: vulnerable
Definition: capable of being wounded or hurt
Usage: vulnerable parts of the body
Antonyms: strong
Definition: having strength or power greater than average or expected
Main entry: vulnerable
Definition: susceptible to criticism or persuasion or temptation
Usage: vulnerable to bribery; an argument vulnerable to refutation
Antonyms: unsusceptible, insusceptible
Definition: not susceptible to