Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
blusterous is an adjective meaning "blowing in violent and abrupt bursts". It carries one recorded sense.
blowing in violent and abrupt bursts
“blustering (or blusterous) winds of Patagonia”
“a cold blustery day”
“a gusty storm with strong sudden rushes of wind”
Definitions, synonyms and semantic relations for blusterous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.