English pronunciation of “imponderable”

imponderable

uk How to pronounce imponderable noun in British English
us How to pronounce imponderable noun in American English
uk How to pronounce imponderable adjective in British English
us How to pronounce imponderable adjective in American English

(English pronunciations of “imponderable” from the Cambridge Advanced Learner’s Dictionary & Thesaurus and from the Cambridge Academic Content Dictionary, both sources © Cambridge University Press)