Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
slanderously is an adverb meaning "in a false and slanderous and defamatory manner; with slander or calumny". It carries one recorded sense.
in a false and slanderous and defamatory manner; with slander or calumny
Definitions, synonyms and semantic relations for slanderously come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.