Lost consciousness is a state of being unaware of one's surroundings and not being able to respond to stimuli. It can be caused by a variety of factors, including physical trauma, psychological trauma, or medical conditions. Two common terms used to describe this state are 'FAINTED' and 'blacked out'. FAINTED is a 7-letter word that describes the sudden loss of consciousness due to a decrease in blood pressure or a lack of oxygen. Blacked out is a 10-letter word that describes the loss of consciousness due to an excessive amount of alcohol or drugs.