deafening /ˈdɛfənɪŋ(ɡ)/adjective 2noun 2forms 3phrases 1 adjective2 •Loud enough to cause temporary or permanent hearing loss.With a deafening crash lightning strikes the ledge directly above us. — 1989 •Very loud.At the end of a frantic first 45 minutes, there was still time for Charlie Adam to strike the bar from 20 yards before referee Atkinson departed to a deafening chorus of jeering from Everton's fans. — 2011 noun2 •The process by which something is deafened.Film and dance theory offer a productive vocabulary for considering the effects of these mutings and deafenings. — 2012 •pugging formsdeafenings · more deafening · most deafening Phrases with deafening deafening silenceA noteworthy silence, or absence of response, especially one signifying disapproval or lack of enthusiasm.