Some affliction at birth had left him mentally slow, but his generally sunny nature helped compensate.

Fentress said she was talkative and mentally slow.

Huge and menacing, they were mentally slow and harmless.

Another weakness of Sludge's is that he is depicted as being mentally slow.

He plays a teen-ager in a tough, showy role as a mentally slow character.

Most of her 34 special ed students are the mentally slow learning disabled, and only three scored proficient in reading.

Drummond, mentally slow as he usually was, came to the quick conclusion that this was a supreme moment in her life, on which perhaps great issues depended.

Milton, one of the men who is mentally slow, says that someone with a big ring drowned Marco, but little of the tribe believes him.

They are often vicious, deceitful, and mentally slow.

The first record of retarded in relation to being mentally slow was in 1895.