Synonyms of the word

wide-awake

• adj. completely or fully awake.
• adj. alert, vigilant or watchful.
• n. Alternative spelling of wideawake.
• n. The sooty tern.

alert

• adj. Attentive; awake; on guard.
• adj. (obsolete) Brisk; nimble; moving with celerity.
• n. An alarm.
• n. A notification of higher importance than an advisory.
• v. To give warning to.

awake

• adj. Not asleep; conscious.
• adj. (by extension) Alert, aware.
• v. (intransitive) To become conscious after having slept.
• v. (transitive) To cause (somebody) to stop sleeping.
• v. (transitive) to excite or to stir up something latent.
• v. (transitive, figuratively) To rouse from a state of inaction or dormancy.
• v. (intransitive, figuratively) To come out of a state of inaction or dormancy.

heads-up

• n. (chiefly US, idiomatic) A warning or call to pay attention; an advisory notice; a notice of what is to…
• n. (poker) Involving two players. (usually said when there are only two players in the table; or, when all…
• adj. With head directly above the neck, eyes front.
• adj. Alert; vigilant.

unsleeping

• adj. Not sleeping.
• adj. constant.