n. 25B6; verb DELAY, slow down/up, hold back/up, set back, postpone, put back, detain, decelerate; hinder, hamper, obstruct, inhibit, impede, check, restrain, restrict, trammel; poetic/literary stay.
accelerate.
RETARD
Meaning of RETARD in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012