Definition of deafeningly in US English:

deafeningly

adverb

  • See deafening

    • ‘It was mentioning The Sisters Of Mercy that won him over, I'm sure - seems that he spent his student days in London listening to deafeningly loud music too’
    • ‘Nor did she notice the peals of thunder that rang deafeningly through the crevices.’
    • ‘As the truck inches along, dancers with more than a few drinks in them move frenziedly to deafeningly loud drums and loudspeakers.’
    • ‘The noise from the kitchen of crashing dishes and cutlery reverberate deafeningly off the concrete floor.’
    • ‘The room erupted and people applauded deafeningly loudly.’

Pronunciation

deafeningly

/ˈdef(ə)niNGlē//ˈdɛf(ə)nɪŋli/