Definition of retard in English:


Line breaks: re¦tard


Pronunciation: /rɪˈtɑːd
[with object]


Pronunciation: /ˈriːtɑːd
informal , • offensive Back to top  
  • A person who has a mental disability (often used as a general term of abuse).


in retard

British formal Behind in terms of development or progress: I was in retard of them in real knowledge
More example sentences
  • Because the clocks had been jumped ahead, the day kept feeling in retard of where it actually was.
  • Means may be provided such that the clock mechanism may display, instead of the correct time for a zone or locality, a time which is in advance or in retard of that time.



Pronunciation: /riːtɑːˈdeɪʃ(ə)n/
More example sentences
  • Iodine deficiency is the most common preventable causes of mental retardation among the children and miscarriage among pregnant women.
  • Sudden changes - from loud to soft, lento to presto, or vice versa - keep us on our toes, increasingly aware that the tempo is the message, that acceleration and retardation are the music of living.
  • Tributyltin, for example, is a licensed marine antifoulant used in paints and extremely toxic to crustaceans where, even at low levels, it can cause structural growth changes and retardation.


More example sentences
  • Also, since air retarders and vapor diffusion retarders serve different functions and have distinct characteristics, it may be more practical to install them as separate systems.
  • The drivers are taught to use engine retarders instead of brakes, and if they have to use the brakes, to tap them lightly.
  • Contractors are also encouraged to use evaporation retarders when weather conditions could cause excessive water evaporation from the slab.


noun ( • rare )
More example sentences
  • The lining not only forms a decorative finish to the hull but also acts as a very good fire retardment.
  • It is shown that there is a direct relationship between spring retardment (Φ) and the neap to spring ratio.


late 15th century: from French retarder, from Latin retardare, from re- 'back' + tardus 'slow'.

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