say it: in-SAY-shuh-buhl
insatiable is an adjective meaning "impossible to satisfy". It carries one recorded sense.
impossible to satisfy
“an insatiate appetite”
“an insatiable demand for old buildings to restore”
“his passion for work was unsatiable”
Definitions, synonyms and semantic relations for insatiable come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.