What does unconsciousness mean?
Unconsciousness means the condition of lacking conscious awareness. In its most familiar, medical sense, it describes a state in which a person is not aware of their surroundings or actions and cannot respond normally to ordinary stimuli; it may result from injury, illness, medication, or other causes. The term is more precise than simply saying that someone is asleep, because unconsciousness implies a more profound disruption of awareness and responsiveness. Figuratively, unconsciousness can describe widespread ignorance, inattention, or failure to recognize an issue, as when a society is said to show unconsciousness toward discrimination. The word is generally formal and appears especially in medicine, law, safety reports, and public discussion. Its central contrast is with consciousness: it names the absence of awakened awareness rather than simply the absence of attention, memory, or knowledge.
nounUnconsciousness is the state of being unconscious, characterized by a lack of awareness of one's surroundings and an inability to respond normally to ordinary stimuli. Figuratively, it can refer to a failure or refusal to notice or think about something.
- The state of being unconscious, marked by a lack of awareness of one's surroundings and of one's own actions and by reduced or absent responsiveness to external stimuli.
- A figurative lack of awareness, attention, or recognition, especially regarding an issue, fact, or social condition.
"The injured cyclist remained in a state of unconsciousness until paramedics reached him."
"Her sudden unconsciousness alarmed the other passengers on the train."
"The campaign exposed the wider unconsciousness surrounding the environmental damage."
Rare and usually avoided; unconsciousness is normally used as an uncountable noun.
"The medical chart records three brief unconsciousnesses following the procedure."
Unconsciousness is more than falling asleep: medically, it means a profound lack of awareness and responsiveness, which makes rapid assessment especially important.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unconsciousness come from?
Unconsciousness was formed in English by adding the suffix -ness to unconscious, which in turn uses the prefix un- meaning 'not' together with conscious. The English family of conscious words ultimately derives from Latin conscientia, associated with knowledge, awareness, and shared understanding. Conscious was established in English in the 17th century, while unconscious and unconsciousness developed later from it. Related forms include consciously, consciousness, and unconsciously.
Related word forms
How unconsciousness is actually used
The word is most commonly used in medical, legal, and formal contexts for a physical loss of awareness. Its figurative use, especially for societal or personal inattention, is somewhat literary or political. The plural is possible but uncommon because the word is normally treated as an uncountable noun.
Easily confused with unconsciousness
Unconsciousness is the noun for the state of being unconscious, while unconscious is primarily an adjective describing a person, condition, or process that lacks awareness.