Tom is retarded.

This is so retarded.

Historians say plagues and pestilence have reshaped countries before, changing politics, contributing to instability, retarding economic development and altering social relations.

There is merit even in the mentally retarded legislator. He asks the questions that everyone is afraid to ask for fear of seeming simple.

I'm such a retard!

Are you retarded?

They say I'm retarded.

Peter was born mentally retarded.

How do I look?" "You look retarded."

Some retarded teenager is assailing the statistics again.