Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unexcitingly is an adverb meaning "in an unexciting manner". It carries one recorded sense.
in an unexciting manner
“this painting was nothing more but an unexcitingly grey canvas with a few red speckles”
Definitions, synonyms and semantic relations for unexcitingly come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .