Origin: 1625–35; <
Latin conscius sharing knowledge with, equivalent to
con- con- +
sci- (stem of
scīre to know; see
science) +
-us -ous; cf.
nice Related forms con·scious·ly, adverb
half-con·scious, adjective
half-con·scious·ly, adverb
half-con·scious·ness, noun
non·con·scious, adjective
non·con·scious·ly, adverb
non·con·scious·ness, noun
o·ver·con·scious, adjective
o·ver·con·scious·ly, adverb
o·ver·con·scious·ness, noun
qua·si-con·scious, adjective
qua·si-con·scious·ly, adverb
Synonyms
2. knowing, percipient. 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.