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Definitions

conscious

[kon-shuhs] / ˈkɒn ʃəs /
ADJECTIVE
alert, awake
Synonyms
STRONGEST
attentive aware certain cognizant informed keen mindful responsive sensible sure vigilant watchful
WEAK
able to recognize acquainted aesthetic alive to apperceptive apprised assured au courant conversant discerning hep to in on in right mind knowing noticing noting observing on to perceiving percipient recognizing remarking seeing sensitive to sentient supraliminal understanding wise to with it witting
Antonyms
STRONGEST
careless heedless ignorant inattentive unaware uncertain unconfident uninformed unsure
WEAK
indifferent unconscious unintentional unresponsive unstudied
ADJECTIVE
intentional
Synonyms
STRONGEST
calculated deliberate premeditated rational reflective responsible self-conscious
WEAK
affected knowing mannered reasoning studied willful
Antonyms
WEAK
impassive indifferent not deliberate senseless unaware unconscious unfeeling unintentional unmindful unresponsive unstudied

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His research includes developing new ways to identify signs of awareness in patients who appear unresponsive, helping to push the boundaries of how scientists detect and understand conscious states.

From Science Daily • Apr. 6, 2026

"They're making a conscious decision to not go into Google, even though it's got built-in AI, and are actually going into ChatGPT."

From BBC • Apr. 6, 2026

The point: Dollar General appears ready to generate sales and earnings that satisfy or surpass expectations, even if consumer spending were to slow under the premise that shoppers would become more bargain conscious.

From Barron's • Mar. 26, 2026

If that assumption is correct, then in principle there is no reason machines couldn’t eventually become conscious as well.

From The Wall Street Journal • Mar. 25, 2026

Jason had to make a conscious effort not to reach for his sword.

From "The House of Hades" by Rick Riordan

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.