Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
inextinguishable is an adjective meaning "difficult or impossible to extinguish". It carries one recorded sense.
difficult or impossible to extinguish
“an inextinguishable flame”
“an inextinguishable faith”
Definitions, synonyms and semantic relations for inextinguishable come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .