conscious

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Having an awareness of one's environment and one's own existence, sensations, and thoughts. See Synonyms at aware.
2. adj. Mentally perceptive or alert; awake: The patient remained fully conscious after the local anesthetic was administered.
3. adj. Capable of thought, will, or perception: the development of conscious life on the planet.
4. adj. Subjectively known or felt: conscious remorse.
5. adj. Intentionally conceived or done; deliberate: a conscious insult; made a conscious effort to speak more clearly.
6. adj. Inwardly attentive or sensible; mindful: was increasingly conscious of being watched.
7. adj. Especially aware of or preoccupied with. Often used in combination: a cost-conscious approach to further development; a health-conscious diet.
8. n. In psychoanalysis, the component of waking awareness perceptible by a person at any given instant; consciousness.

Century Dictionary and Cyclopedia

1. In the state of a waking as distinguished from that of a sleeping person or an inanimate thing; in the act of feeling, or endowed with feeling, in the broadest sense of the word.
2. Attributing, or capable of attributing, one's sensations, cognitions, etc., to one's self; aware of the unity of self in knowledge; aware of one's self; self-conscious.
3. Having one's feelings directed toward one's self; embarrassed by one's feelings about one's own person, and by the sense of being observed and criticized by others.
4. Present to consciousness; known or perceived as existing in one's self; felt: as, conscious guilt.
5. Aware of an object; perceiving. Aware of an internal object; aware of a thought, feeling, or volition.
6. Aware of an external object: a less correct use of the term: followed in either use by of or that, formerly by to or to one's self that.
7. Aware of some element of character as belonging to one's self.
8. Synonyms To be Sensible or Conscious, etc. (see feel). Aware, Conscious. Aware refers commonly to objects of perception outside of ourselves; conscious, to objects of perception within us: as, to become aware of the presence of a stranger; to be quite aware of the danger of one's situation; to become conscious of a pain in one's eye. Aware indicates perception without feeling; conscious, generally recognition with some degree of feeling.

Wiktionary

1. adj. alert, awake.
2. adj. aware.
3. adj. aware of one's own existence; aware of one's own awareness

GNU Webster's 1913

1. adj. Possessing the faculty of knowing one's own thoughts or mental operations.
2. adj. Possessing knowledge, whether by internal, conscious experience or by external observation; cognizant; aware; sensible.
3. adj. Made the object of consciousness; known to one's self.

WordNet 3.0

1. adj. knowing and perceiving; having awareness of surroundings and sensations and thoughts
2. adj. intentionally conceived
3. adj. (followed by `of') showing realization or recognition of something