conscious [kon-shuhs] SynonymsWord Origin adjective

  1. aware of one’s own existence, sensations, thoughts, surroundings, etc.
  2. fully aware of or sensitive to something (often followed by of): conscious of one’s own faults; He wasn’t conscious of the gossip about his past.
  3. having the mental faculties fully active: He was conscious during the operation.
  4. known to oneself; felt: conscious guilt.
  5. aware of what one is doing: a conscious liar.
  6. aware of oneself; self-conscious.
  7. deliberate; intentional: a conscious insult; a conscious effort.
  8. acutely aware of or concerned about: money-conscious; a diet-conscious society.
  9. Obsolete. inwardly sensible of wrongdoing.


  1. the conscious, Psychoanalysis. the part of the mind comprising psychic material of which the individual is aware.

Origin of conscious 1625–35; Latin conscius sharing knowledge with, equivalent to con- con- + sci- (stem of scīre to know; see science) + -us -ous; cf. nice Related formscon·scious·ly, adverbhalf-con·scious, adjectivehalf-con·scious·ly, adverbhalf-con·scious·ness, nounnon·con·scious, adjectivenon·con·scious·ly, adverbnon·con·scious·ness, nouno·ver·con·scious, adjectiveo·ver·con·scious·ly, adverbo·ver·con·scious·ness, nounqua·si-con·scious, adjectivequa·si-con·scious·ly, adverbCan be confusedconscience consciousSynonyms for conscious 2. knowing, percipient. Synonym study 2. Conscious, aware, cognizant refer to an individual sense of recognition of something within or without oneself. Conscious implies to be awake or awakened to an inner realization of a fact, a truth, a condition, etc.: to be conscious of an extreme weariness. Aware lays the emphasis on sense perceptions insofar as they are the object of conscious recognition: He was aware of the odor of tobacco. Cognizant lays the emphasis on an outer recognition more on the level of reason and knowledge than on the sensory level alone: He was cognizant of their drawbacks. British Dictionary definitions for quasi-conscious conscious adjective

    1. alert and awake; not sleeping or comatose
    2. aware of one’s surroundings, one’s own thoughts and motivations, etc
    1. aware of and giving value or emphasis to a particular fact or phenomenonI am conscious of your great kindness to me
    2. (in combination)clothes-conscious
  1. done with full awareness; deliberatea conscious effort; conscious rudeness
    1. denoting or relating to a part of the human mind that is aware of a person’s self, environment, and mental activity and that to a certain extent determines his choices of action
    2. (as noun)the conscious is only a small part of the mind

Compare unconscious Derived Formsconsciously, adverbconsciousness, nounWord Origin for conscious C17: from Latin conscius sharing knowledge, from com- with + scīre to know Word Origin and History for quasi-conscious conscious adj.

c.1600, “knowing, privy to,” from Latin conscius “knowing, aware,” from conscire (see conscience); probably a loan-translation of Greek syneidos. A word adopted from the Latin poets and much mocked at first. Sense of “active and awake” is from 1837.

quasi-conscious in Medicine conscious [kŏn′shəs] adj.

  1. Having an awareness of one’s environment and one’s own existence, sensations, and thoughts.
  2. Intentionally conceived or done; deliberate.


  1. In psychoanalysis, the component of waking awareness perceptible by a person at any given instant.

Related formscon′scious•ly adv.

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