say it: THUHN-dur-ing
thundering is an adjective meaning "sounding like thunder". It carries 2 recorded senses.
extraordinarily big or impressive
“a thundering success”
“the thundering silence of what was left unsaid”
Definitions, synonyms and semantic relations for thundering 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.