retard
nounRetardation.
To make slow or slower; obstruct in motion or progress; delay; impede; clog; hinder.
To defer; postpone; put off.
Synonyms To detain, delay.
To be delayed or later than usual.
intransitive verbTo stay back.
transitive verbTo keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder; ; — opposed to
To put off; to postpone
nounRetardation; delay.