substantiv
a person of subnormal intelligenceverb
cause to move more slowly or operate at a slower rate"This drug will retard your heart rate"
verb
lose velocitymove more slowly
"The car decelerated"
verb
slow the growth or development of"The brain damage will retard the child''s language development"
verb
be delayedAntonime:
(verb) quicken, speed, accelerate
Sinonime:
(substantiv) changeling, cretin, idiot, imbecile, moron
(verb) check, decelerate, delay, slow