"deafened" in the verb sense
1. deafen
be unbearably loud
"a deafening noise"
2. deafen, deaf
make or render deaf
"a deafening noise"
3. deafen
make soundproof
"deafen a room"
"deafened" in the adjective sense
1. deafened
caused to hear poorly or not at all
Source: WordNet® (An amazing lexical database of English)
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