say it: ree-uh-SHUR-ing-lee
reassuringly is an adverb meaning "in a reassuring manner". It carries one recorded sense.
in a reassuring manner
“the prime minister pointed reassuringly to the silence of the British press”
Definitions, synonyms and semantic relations for reassuringly 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.