deceleration (n.)

• arrest
• check
• collapse
• constraint
• control
• cooling
• crash
• curb
• curtailment
• declension
• decline
• decrescendo
• delay
• detention
• diminuendo
• dive
• downturn
• drag
• drop
• dwindling
• ebb
• fall
• flagging
• hindrance
• holdup
• inhibition
• injunction
• interdict
• lag
• lapse
• letdown
• letup
• monopoly
• obstruction
• plunge
• prohibition
• protection
• protectionism
• rationing
• rein
• remission
• restraint
• retardation
• retreat
• retrenchment
• self-control
• setback
• slackening
• slowdown
• slowing
• slump
• subsidence
• wane