mentally retarded

Adjective

 * 1)  intellectually disabled, medically defined as having an IQ (intelligence quotient) below 70 in addition to deficits in two or more adaptive behaviors (which means having problems with basic functional skills that affect everyday, general living).

Synonyms

 * intellectually disabled
 * developmentally disabled
 * mentally challenged
 * special
 * developmentally delayed

Translations

 * Arabic: مُتَخَلِّف
 * Finnish:
 * Macedonian: ментално заостанат
 * Romanian: retardat, înapoiat mintal