say it: THUHN-dur-uhs
thunderous is an adjective meaning "loud enough to cause (temporary) hearing loss". It carries 2 recorded senses.
loud enough to cause (temporary) hearing loss
Definitions, synonyms and semantic relations for thunderous 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.