Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
bigheaded is an adjective meaning "(used colloquially) overly conceited or arrogant". It carries one recorded sense.
(used colloquially) overly conceited or arrogant
“a snotty little scion of a degenerate family”
“they're snobs--stuck-up and uppity and persnickety”
Definitions, synonyms and semantic relations for bigheaded come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.