retardasi mental bahasa Inggris

• slowness
• retardation
• backwardness
• subnormality
• mental retardation

• mental:    mental; be launched; mentality; mentally;
• mental:    mental; be launched; mentality; mentally; uninjured; genial; way of thinking; see also
• gangguan mental:    mental and behavioural disorders

Contoh

1. According to Tan, persons affected by this syndrome walk with a quadrupedal locomotion and are afflicted with "primitive" speech and severe mental retardation.
   Orang yang terkena sindrom ini berjalan dengan lokomosi quadrupedal dan menderita kemampuan berbicara primitif dan retardasi mental berat.
2. It is also claimed that some individuals are unaware of time, lack language, have severe mental retardation with no conscious experience, and communicate by using sounds.
   Beberapa individu tidak sadar dengan waktu, kekurangan bahasa, memiliki retardasi mental berat tanpa ada pengalaman sadar dan berkomunikasi dengan suara keruh.