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