unconsciousness
noun
[ ʌnˈkɒnʃəsnəs ]
• the state of being unconscious.
• "someone gave me a crack across the head and I slipped into unconsciousness"
Similar:
insensibility,
senselessness,
stupefaction,
oblivion,
unawareness,
blankness,
lack of sensation,
lack of feeling,
blackout,
coma,
stupor,
torpor,
trance,
sopor,
collapse,