say it: uh-thaw-ruh-TAY-tiv-lee
authoritatively is an adverb meaning "in an authoritative and magisterial manner". It is pronounced /əˌθɔɹəˈteɪtɪvli/ — uh-thaw-ruh-TAY-tiv-lee. It carries one recorded sense.
Definitions, synonyms and semantic relations for authoritatively 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.