unconscious

1 of 2

adjective

un·​con·​scious ˌən-ˈkän(t)-shəs 

1

a

: having lost consciousness

was unconscious for three days

b(1)

: not marked by conscious thought, sensation, or feeling

unconscious motivation

(2)

: of or relating to the unconscious

c

: not possessing mind or consciousness

unconscious matter

2

a

: not knowing or perceiving : not aware

b

: free from self-awareness

3

: not consciously held or deliberately planned or carried out

an unconscious bias

unconsciously adverb

unconsciousness noun

unconscious

2 of 2

noun

: the part of mental life that does not ordinarily enter the individual's awareness yet may influence behavior and perception or be revealed (as in slips of the tongue or in dreams)

Synonyms

Adjective

• cold
• insensible
• senseless

Examples of unconscious in a Sentence

Adjective

He was knocked unconscious by a fall.

She was unconscious for three days after the accident.

Recent Examples on the Web

Adjective

To take it a step further, Mars will station retrograde in Leo on Dec. 6 — shaking up your 12th house of closure, healing and unconscious patterns — which is also an invitation to reconsider how your residual energies in your subconscious influence your love life. —Valerie Mesa, People.com, 7 Dec. 2024

Her steering wheel, bent and broken, could indicate that Silkwood braced her arms as the impact occurred -- inconsistent with someone being unconscious at the time. —Aaron Katersky, ABC News, 5 Dec. 2024

Noun

The last thing Master Shen sees before his eyes close for the last time is Quan knocking An unconscious in about two seconds flat. —David Ehrlich, IndieWire, 6 Nov. 2024

Keaton is still funny, and manic, and growling, but not unsettling — not something to tug at your unconscious in your dreams or your waking hours. —Tom Gliatto, Peoplemag, 5 Sep. 2024

Word History

First Known Use

Adjective

1712, in the meaning defined at sense 2a

Noun

circa 1912, in the meaning defined above

Phrases Containing unconscious

• collective unconscious

Kids Definition

unconscious

1 of 2 adjective

un·​con·​scious ˌən-ˈkän-chəs 

ˈən-

1

: not aware

unconscious of having made a mistake

2

: having lost consciousness

knocked unconscious by a fall

3

: not realized : not consciously done

an unconscious mistake

unconscious humor

unconsciously adverb

unconsciousness noun

unconscious

2 of 2 noun

: the part of one's mental life of which one is not aware but which may influence behavior

Medical Definition

unconscious

1 of 2 adjective

un·​con·​scious ˌən-ˈkän-chəs 

1

: not marked by conscious thought, sensation, or feeling

unconscious motivation

2

: of or relating to the unconscious

3

: having lost consciousness

was unconscious for three days

unconsciously adverb

unconsciousness noun

unconscious

2 of 2 noun

: the part of mental life that is not ordinarily integrated or available to consciousness yet may be manifested as a motive force in overt behavior (as in neurosis) and is often revealed (as through dreams, slips of the tongue, or dissociated acts) compare subconscious