KO
absence
acreage
area
blackout
blank
breadth
catalepsy
catatonia
catatony
clean slate
coma
continuum
deprivation
dimension
emptiness
empty space
expanse
expansion
extension
extent
faint
field
galactic space
grayout
inanity
infinite space
interstellar space
kayo
knockout
lipothymia
lipothymy
measure
nada
negation
negativeness
negativity
nihility
nirvana
nirvana principle
nonbeing
nonentity
nonexistence
nonoccurrence
nonreality
nonsubsistence
not-being
nothing
talk
talking
abyss
annihilation
blackness
blankness
chaos
chasm
eternity
futility
helplessness
hopelessness
impotence
inactivity
infinity
insignificance
loneliness
oblivion
obscurity
perdition
stillness
unconsciousness
unreality
existence