constraint (n.)

• abnegation
• abstinence
• aloofness
• aplomb
• arrest
• backwardness
• bashfulness
• blankness
• calm
• calmness
• check
• chilliness
• circumscription
• coaction
• coercion
• coldness
• composure
• compulsion
• compulsiveness
• confinement
• conservatism
• continence
• control
• cool
• cooling
• coolness
• cramp
• curb
• curtailment
• deceleration
• denial
• detachment
• discipline
• discreetness
• discretion
• dispassion
• distance
• drive
• driving
• duress
• enforcement
• evenness
• exigency
• forbearance
• frigidity
• frostiness
• frugality
• gentleness
• goad
• hindrance
• iciness
• impartiality
• impassiveness
• impassivity
• impoundment
• impulse
• impulsion
• inaccessibility
• independence
• inevitability
• inhibition
• injunction
• interdict
• introversion
• irresistibility
• judiciousness
• lenity
• lockup
• mildness
• moderateness
• moderation
• moderationism
• modesty
• monopoly
• motive
• necessity
• neutrality
• nonviolence
• obligation
• pacifism
• penning
• pinch
• possession
• press
• pressure
• prohibition
• protection
• protectionism
• prudence
• push
• rationing
• rein
• remoteness
• renouncement
• renunciation
• repose
• repression
• reserve
• restraint
• restriction
• retardation
• reticence
• retirement
• retrenchment
• self-abnegation
• self-command
• self-control
• self-denial
• self-discipline
• self-government
• self-possession
• self-restraint
• serenity
• soberness
• sobriety
• spring
• spur
• stability
• standoffishness
• steadiness
• stress
• subduedness
• suppression
• temperance
• temperateness
• tranquillity
• unapproachability
• uncongeniality
• urge
• urgency
• violence
• withdrawal
• withdrawnness