say it: VUHL-nur-uh-buhl
vulnerable is an adjective meaning "susceptible to attack". It carries 3 recorded senses.
susceptible to attack
“a vulnerable bridge”
susceptible to criticism or persuasion or temptation
“vulnerable to bribery”
“an argument vulnerable to refutation”
Definitions, synonyms and semantic relations for vulnerable come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.