Aristophanes wrote:
If your psychiatrist refers to AS as a form of retardation I'd question his credentials
That was my first thought.
Like with a lot of words, how is it being applied?
re·tard (verb): ret*d; 3rd person present: ret*ds; past tense: ret*d; past participle: ret*d; gerund or present participle: retarding
riˈtärd/
1. delay or hold back in terms of progress, development, or accomplishment.
"his progress was ret*d by his limp"
Synonyms: delay, slow down, slow up, hold back, hold up, set back, postpone, put back, detain, decelerate.