say it: in-VUHL-nur-uh-buhl
invulnerable is an adjective meaning "immune to attack; impregnable". It carries one recorded sense.
immune to attack; impregnable
“gunners raked the beach from invulnerable positions on the cliffs”
Definitions, synonyms and semantic relations for invulnerable 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.