say it: uhn-suhk-SEH-sfuh-lee
unsuccessfully is an adverb meaning "without success". It is pronounced /ˌʌnsəkˈsɛsfəli/ — uhn-suhk-SEH-sfuh-lee. It carries one recorded sense.
Definitions, synonyms and semantic relations for unsuccessfully 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.