Akademik

retard
1. noun /rɪˈtɑː(ɹ)d,rɪˈtɑɹd,ˈriːtɑː(ɹ)d,riːtɑɹd/
a) retardation; delay
b) a person with mental retardation
Syn: delay, hold-up, retardation, idiot, tard, imbecile, mental deficient, moron, learning difficulties
2. verb /rɪˈtɑː(ɹ)d,rɪˈtɑɹd,ˈriːtɑː(ɹ)d,riːtɑɹd/
a) To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder

retard the march of an army

b) To put off; to postpone.

retard the motion of a ship

Syn: decelerate, hinder, slow, slow down, postpone, put off, hang back, stay back
Ant: accelerate, speed, speed up, come forward

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