say it: im-PLAK-uh-buhl
implacable is an adjective meaning "incapable of being placated". It is pronounced /ˌɪmˈplækəbəl/ — im-PLAK-uh-buhl. It carries one recorded sense.
Definitions, synonyms and semantic relations for implacable 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.