It's enigmatic, yes, but it seems to be the more common term amongst some atypical groups (neurodiverse and queer/trans people are who I have the most interaction with). There are some people who find unusual to be more pejorative than atypical.
Yes, kupiakos, pejorative is not good, I'll change it now for atypical in a few moments. Thanks for your input!
I quite like "neurodiverse", if you intend to be that specific.