Simple Definition of retard
: to slow down the development or progress of (something)
Examples of retard in a sentence
The chemical will retard the spread of fire.
The problems have retarded the progress of the program.
Origin and Etymology of retard
Middle English, from Anglo-French or Latin; Anglo-French retarder, from Latin retardare, from re- + tardus slow
First Known Use: 15th century
Synonym Discussion of retard
delay, procrastinate, lag, loiter, dawdle, dally mean to move or act slowly so as to fall behind. delay usually implies a putting off (as a beginning or departure) <we cannot delay any longer>. procrastinate implies blameworthy delay especially through laziness or apathy <procrastinates about making decisions>. lag implies failure to maintain a speed set by others <lagging behind in technology>. loiter and dawdle imply delay while in progress, especially in walking, but dawdle more clearly suggests an aimless wasting of time <loitered at several store windows> <children dawdling on their way home from school>. dally suggests delay through trifling or vacillation when promptness is necessary <stop dallying and get to work>.
First Known Use of retard
RETARD Defined for Kids
Medical Definition of retard
: to slow up especially by preventing or hindering advance or development <retard spoilage> <retard hair loss>
Seen and Heard
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