retarded
adj//ɹiˈtɑɹdɪd//efterbliven, utvecklingsstörd
Delayed; delayed in development, hindered; impeded. [from 17th c.]
(colloquial, derogatory, offensive) Extremely stupid; obtuse [from 20th c.]
(psychology, sometimes, offensive, dated) Having mental retardation; mentally deficient or underdeveloped.