Synonyms for Retardment:

• n.

  •delay (noun)
  • filibuster,
  • adjournment,
  • jam,
  • moratorium,
  • dawdling,
  • postponement,
  • obstruction,
  • check,
  • setback,
  • tie-up,
  • interval,
  • stop,
  • stoppage,
  • lingering,
  • stay,
  • lag,
  • hindrance,
  • reprieve,
  • wait,
  • Tarrying,
  • remission,
  • discontinuation,
  • stall,
  • suspension,
  • downtime,
  • bind,
  • problem,
  • putting off,
  • Loitering,
  • holding pattern,
  • detention,
  • holding.
  •impediment (noun)
  • clog,
  • rub,
  • encumbrance,
  • drag,
  • tie,
  • hurdle,
  • disadvantage,
  • detriment,
  • curb,
  • stumbling block,
  • difficulty,
  • bottleneck,
  • prohibition,
  • fault,
  • trammel,
  • obstacle,
  • red tape,
  • chain,
  • handicap,
  • restraint,
  • drawback,
  • deterrent,
  • barrier,
  • flaw,
  • manacle,
  • restriction,
  • cramp,
  • block,
  • holdup,
  • barricade,
  • burden,
  • load,
  • hazard,
  • shackle,
  • blockage,
  • bar,
  • wall,
  • defect,
  • snag,
  • catch-22,
  • stricture,
  • hitch,
  • catch.
  •retardation (noun)
  • Detainment.

• Other synonyms:

  •Other relevant words:
  • backwardness,
  • arrested development,
  • imbecility,
  • fixation,
  • slowdown,
  • nuisance value,
  • insanity,
  • mongolism,
  • opposition,
  • interference,
  • cretinism,
  • amentia,
  • negativism,
  • blockade,
  • suppression,
  • arrest,
  • closure,
  • letup,
  • idiocy,
  • constriction,
  • Holdback,
  • resistance,
  • slow up,
  • stranglehold,
  • letdown,
  • Hampering,
  • infantilism,
  • foot-dragging,
  • occlusion,
  • deceleration,
  • interruption,
  • repression,
  • squeeze,
  • slackening,
  • mental deficiency,
  • let,
  • simplicity.

Antonyms for Retardment:

• n.

  • delay
    beginning, assistance, hastening, dispatch, help, support, speed, go, hurry, continuation, promotion, expedition, furtherance, advance, liberation, rush, aid.
  • impediment
    benefit, boon, clearance, freedom, advantage, strength, perfection, permission, blessing, opening, facilitation, allowance.
  • retardation
    boost, start.