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