Comparative form of 'deaf'; more unable to hear than someone or something else.
From 'deaf' + '-er' comparative suffix. English comparative adjectives typically add '-er' for short adjectives (like 'louder,' 'happier') rather than using 'more.'
The comparative 'deafer' shows how we can actually measure and compare hearing loss—someone who's 'deafer' than another person has greater hearing impairment.
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