idiot, imbecile, cretin, moron, changeling, half-wit, retard (verb)

a person of subnormal intelligence

retard (verb)

cause to move more slowly or operate at a slower rate

"This drug will retard your heart rate"

retard (verb)

be delayed

check, retard, delay (verb)

slow the growth or development of

"The brain damage will retard the child's language development"

decelerate, slow, slow down, slow up, retard (verb)

lose velocity; move more slowly

"The car decelerated"

retard (Noun)

Retardation; delay.

retard (Noun)

A person with mental retardation.

retard (Noun)

A stupid person, or one who is slow to learn.

retard (Verb)

To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder

retard (Verb)

To put off; to postpone.

retard (Verb)

To be slow or dilatory to perform (something).

retard (Verb)

To decelerate; to slow down.

retard (Verb)

To stay back.