deaf /dɛf/adjective 6noun 1verb 1forms 5phrases 3 adjective6 •without the power to hear, or with only a little of itMy brother has been deaf since sustaining injuries in the war.It's important for TV shows to provide closed captioning for the deaf. •Unwilling to listen or be persuaded; determinedly inattentive.Those people are deaf to reason. •Of or relating to the culture surrounding deaf users of sign languages.There are Deaf clubs in many cities, but the clubs are just a part of the larger community of Deaf people. — 2006 •Of or relating to the community of deaf people. •(no longer used) Obscurely heard; stifled; deadened.A deaf murmur through the squadron went. — 1717 •(dialect, no longer used) Decayed; tasteless; useless.If the season be unkindly and intemperate, they [peppers] will catch a blast; and then the seeds will be deafe, void, light, and naught. — 1601 noun1 •(nonstandard, rare) A deaf person.Among the second group of philanthropic educational institutions the institutes for the deafs and dumbs must be mentioned. — 1897 verb1 •(no longer used) To deafen.It is enough, my hearing shall be punish'd With what shall happen, -- 'gainst the which there is No deafing -- but to hear, not taint mine eye With dread sights that it may shun. — 1634 formsdeafed · deafing · deafs · deafer · deafest Phrases with deaf are you deafA rhetorical question asked to confront a nondeaf interlocutor who has failed to hear something. preach to deaf earsTo attempt to persuade a party that does not wish to listen or cannot be altered in its conviction. stone deafUtterly deaf.