quiescency
a wise passiveness
abidingness
awful silence
changelessness
cold storage
constancy
contemplation
contemplative life
dead
dead of night
deathlike silence
do-nothing policy
do-nothingism
do-nothingness
doldrums
dormancy
durability
durableness
duration
endurance
firmness
fixedness
frozenness
golden silence
hardening
hibernation
hush
hush of night
idleness
immobility
immovability
immovableness
immutability
inaction
inactiveness
inactivity
inaudibility
indolence
inertia
inertness
intermission
interruption
invariability
invariableness
inveteracy
laissez-aller
laissez-faire
laissez-faireism
lastingness
latency
cessation
debility
derangement
epilepsy
irresolution
lethargy
oblivion
paralysis
passivity
prostration
quietness
quietude
relaxation
seclusion
sluggishness
stagnation
torpor
tranquility
tranquillity
unconsciousness