retardee

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

noun

a retarded person; retardate.

Origin of retardee

An Americanism dating back to 1970–75; retard + -ee
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019