Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Adjective: retarded  ri'taa(r)-did
  1. Relatively slow in mental, emotional or physical development
    "providing a secure and sometimes happy life for the retarded";
    - mentally retarded
Noun: retarded  ri'taa(r)-did
  1. People collectively who are mentally retarded
    "he started a school for the retarded";
    - mentally retarded, developmentally challenged
Verb: retard  ri'taa(r)d
  1. Cause to move more slowly or operate at a slower rate
    "This drug will retard your heart rate"
  2. Be delayed
  3. Slow the growth or development of
    "The brain damage will retard the child's language development";
    - check, delay
  4. Lose velocity; move more slowly
    - decelerate, slow, slow down, slow up

See also: backward, cretinous, delayed, dim-witted [informal], dull-witted [archaic], feebleminded, half-witted, idiotic, imbecilic [archaic], moronic [informal], simple, simple-minded, slow-witted, stupid, unintelligent

Type of: alter, be, change, decelerate, decrease, diminish, fall, lessen, modify, people, slow down

Antonym: precocious

Encyclopedia: Retarded