Allism

An allistic person is someone who is not autistic. They may have ADHD, OCD, or in some other way be neurodivergent, or they may be neurotypical, but they are not autistic.

"Neurotypical" or NT is sometimes (incorrectly) used to mean allistic. Used properly, it means "someone who is not neurodivergent (ND) at all." A neurotypical person is allistic, and also does not have ADHD, OCD, or any other neurodivergencies.