I’ve been seeing the use of the phrase “functinally illiterate”, and it got me thinking that I don’t think there is such a thing when it’s speech instead of the written word. There are plenty of instances I can think of where I or someone I knew was simply not capable of or didn’t want to try to understand something that was said. Is there something that means not bring able or refusing to comprehend speech when that person is fluent in the language being spoken?
Agnosia or asemia?
Asemia seems a good fit. Especially so under the context OP has chosen with the lawyer and the contract, as that scenario explicitly ties it to a loss of the function rather than lacking it altogether.
Edit: Thanks for the new word btw. It’s a neat one and feels nice to say, too