English Reference

Word

unconscious

Phoneticsun·con·scious, stress on the second syllable

US/ˌənˈkɑnʃəs/

UK/ʌnkˈɒnʃəs/

Definitions

01not awake

B2 · Upper Intermediate Medicine

adj. not awake or aware of what is happening, usually because of an injury or illness.

adj. lacking sensory awareness and responsiveness to the environment, typically resulting from physical trauma, anesthesia, or illness.

“The boxer was knocked unconscious for several minutes after the heavy blow.”

“Paramedics found the driver unconscious at the wheel, though his vital signs remained stable despite the severity of the impact.”

Synonyms

insensibleout coldcomatose

Antonyms

02without realizing

B2 · Upper Intermediate

adj. done or felt without you realizing it or thinking about it.

adj. occurring without the agent's deliberate intention or conscious awareness.

“She had an unconscious habit of tapping her pen when she was nervous.”

“The artist's work often reveals unconscious biases that reflect the social environment of her upbringing rather than her stated beliefs.”

03the hidden mind

C1 · Advanced Uncountable noun Psychology Academic

n. the part of your mind that contains feelings and thoughts you are not aware of.

n. the part of the psyche that is not available to introspection but influences behavior and emotions.

“He believed that dreams were a way to understand the unconscious.”

“Freudian theory suggests that many of our daily anxieties are rooted in the unconscious, shaped by early childhood experiences we no longer remember.”

Usage

Usually used with the definite article 'the'.

Synonyms

Antonyms

conscious mind

Collocations

Common phrases and expressions where native English speakers use the word “unconscious” in context.

Verb

01. knock the boxer unconscious

“The heavy blow to the head knocked the boxer unconscious for several minutes.”

verb + noun + adj

02. lie unconscious on the floor

“The paramedics found the victim lying unconscious on the floor of the kitchen.”

verb + adj + prep + noun

03. remain unconscious for hours

“The patient remained unconscious for hours after the surgery was completed.”

verb + adj + prep + noun

Adjective

04. deeply unconscious

“He was deeply unconscious and did not respond to any external stimuli.”

adv + adj

05. unconscious bias

“The company introduced training to help employees recognize their unconscious bias during interviews.”

adj + noun

06. unconscious desire

“Psychologists believe that dreams can reveal an unconscious desire for change.”

adj + noun

Noun

07. collective unconscious

“Jungian theory suggests that all humans share a collective unconscious filled with archetypes.”

adj + noun

Real-World Examples

“But upon returning, she discovers something shocking: the unconscious body of an oil company CEO in her boot, his hands hog-tied together, dangling limply towards the vehicle’s number plate.”
The Guardian 17 Aug 2026
“Many were taken prisoner while severely wounded, exhausted, ill or even unconscious, meaning they had little opportunity to resist.”
Smithsonian Magazine 5 Aug 2026
“That’s in part because conscious beings might matter morally in a way that unconscious things don’t.”
ScienceDaily 5 Jun 2026

Etymology

From un- + conscious.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADJECTIVE

unconscious(B2)

Domains

PsychologySports

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper IntermediateOxford
Updated

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English Reference