Synonyms for Retarding device:

• n.

  •brake (noun)
  • control,
  • rein,
  • anchor,
  • hamper,
  • hurdle,
  • constraint,
  • damper,
  • obstacle,
  • curb,
  • hindrance,
  • deterrent,
  • binders,
  • discouragement.
  •Other relevant words: (noun)
  • restraint,
  • brake,
  • cincher,
  • obstacles,
  • cinchers.

Antonyms for Retarding device:

• n.

  • brake
    help, incentive, accelerator, opening, assistance, catalyst, encouragement.