Как по Английски будет умственно отсталый

adjective

Not available or in short supply.

Примеры использования:

Adequate resources are sadly lacking

verb

Be without or deficient in.

Примеры использования:

The novel lacks imagination

adjective

Imperfect or faulty.

Примеры использования:

Complaints over defective goods

noun

Having mental disabilities.

adjective

Not meeting standards or reaching a level regarded as usual.

Примеры использования:

When you lose enough body heat to make your temperature subnormal, you become hypothermic

noun

A person who has a mental disability.

adjective

Less advanced in mental, physical, or social development than is usual for one's age.

Примеры использования:

He was also an adolescent with retarded social development, a peter pan who never grew up.

verb

Delay or hold back in terms of progress or development.

Примеры использования:

Our progress was retarded by unforeseen difficulties