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Simple Definition of retard

from our Learner's Dictionary

retard

1 of 2

verb

rɪˈtɑɚd

retards; retarded; retarding

formal : to slow down the development or progress of (something)

The chemical will retard the spread of fire.

The problems have retarded the progress of the program.

retard

2 of 2

noun

ˈriːˌtɑɚd

plural retards

informal + offensive : a person who has slow mental development

also : a stupid or foolish person

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“Retard.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/retard. Accessed 26 Jul. 2026.

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Simple Definition of retard

retard

verb

noun

Cite this Entry

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