Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
resplendently is an adverb meaning "in an impressively beautiful manner". It carries one recorded sense.
in an impressively beautiful manner
“the Princess was gorgeously dressed”
Definitions, synonyms and semantic relations for resplendently come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.