LEARNit Dictionary
retarded
adjective
/rɪˈtɑːdɪd/
UK
/rɪˈtɑːrdɪd/
US
1
slow to learn or develop mentally; finding it difficult to make progress in learning
کندذهن, عقبمانده, عقبافتاده, کمتوان, کمهوش, دیرآموز