abatement
allayment
alleviation
assuagement
blunting
calming
carelessness
damping
deadening
demulcent
demulsion
diminution
dulcification
dulling
easiness
easing
easygoingness
emollient
falling-off
hushing
impotence
imprecision
indifference
laxity
laxness
leniency
lessening
letdown
letup
lightening
looseness
lulling
mitigation
modulation
mollification
mollifying
negligence
overindulgence
overpermissiveness
pacification
palliation
permissiveness
quietening
quieting
reduction
relaxation
relaxedness
relaxing
remission
remissness