say it: uhn-STAH-puh-buhl
unstoppable is an adjective meaning "not capable of being stopped". It is pronounced /ənˈstɑpəbəl/ — uhn-STAH-puh-buhl. It carries one recorded sense.
Definitions, synonyms and semantic relations for unstoppable 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.