- 1to make something such as a sound, a feeling, etc., less strong synonym dull
- 2 He was given drugs to deaden the pain. The wood paneling in the rooms deadened any noise from outside.
NAmE//ˈdɛdn//deaden somethingVerb Forms present simple I / you / we / they deaden
he / she / it deadens
past simple deadened
-ing form deadening
deadeningjump to other results
adjective [only before noun] the deadening effect of alcohol on your reactions