Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
inbuilt is an adjective meaning "existing as an essential constituent or characteristic". It carries one recorded sense.
existing as an essential constituent or characteristic
“the Ptolemaic system with its built-in concept of periodicity”
“a constitutional inability to tell the truth”
Definitions, synonyms and semantic relations for inbuilt come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.