Can "deaf" be an antonym for "auditory"?
4 answers
No
Some words don't have real antonyms -- and auditory is one of them. I checked a couple of antonym dictionaries, and didn't find an antonym.
Noiseless or inaudible.
Auditory refers to the entire area of all things relating to sound and hearing, in the same way that "cardiac" refers to all things related the the heart. Think of it like a topic more than a noun, or even a verb. You cannot have an antonym for a topic. "noiseless or inaudible" are antonyms for "loud and audible".