Jun 3, 2012 · The meaning of CONSCIOUS is having mental faculties not dulled by sleep, faintness, or stupor : awake. How to use conscious in a sentence. Synonym Discussion of Conscious.

CONSCIOUS definition: aware of one's own existence, sensations, thoughts, surroundings, etc. See examples of conscious used in a sentence.

CONSCIOUS definition: 1. to notice that a particular thing or person exists or is present: 2. awake, thinking, and…. Learn more.

Define conscious. conscious synonyms, conscious pronunciation, conscious translation, English dictionary definition of conscious. aware; capable of thought or will: a conscious decision; cognizant: …

Dec 24, 2025 · conscious (comparative more conscious, superlative most conscious) Alert, awake; with one's mental faculties active.

Definition of conscious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

There are 19 meanings listed in OED's entry for the word conscious, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.