say it: STAG-ur-ing-lee
staggeringly is an adverb meaning "extremely". It is pronounced /ˈstæɡɚˌɪŋˌli/ — STAG-ur-ing-lee. It carries one recorded sense.
Definitions, synonyms and semantic relations for staggeringly 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.