Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
fractiously is an adverb meaning "in a peevish manner". It carries 2 recorded senses.
in a peevish manner
in a fractious manner
“the horse was behaving fractiously and refused to jump”
Definitions, synonyms and semantic relations for fractiously come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.