say it: oh-vur-WEL-ming-lee
overwhelmingly is an adverb meaning "incapable of being resisted". It carries one recorded sense.
incapable of being resisted
“the candy looked overwhelmingly desirable to the dieting man”
Definitions, synonyms and semantic relations for overwhelmingly 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.