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retardee

American  
[ri-tahr-dee, -tahr-dee] / rɪ tɑrˈdi, -ˈtɑr di /

noun

  1. Older Use: Offensive.  a person who has an intellectual disability or is otherwise limited, as educationally or emotionally.


Etymology

Origin of retardee

An Americanism dating back to 1955–60; retard + -ee