Search Result for "wakeful": 
Wordnet 3.0

ADJECTIVE (3)

1. carefully observant or attentive; on the lookout for possible danger;
- Example: "a policy of open-eyed awareness"
- Example: "the vigilant eye of the town watch"
- Example: "there was a watchful dignity in the room"
- Example: "a watchful parent with a toddler in tow"
[syn: argus-eyed, open-eyed, vigilant, wakeful]

2. (of sleep) easily disturbed;
- Example: "in a light doze"
- Example: "a light sleeper"
- Example: "a restless wakeful night"
[syn: light, wakeful]

3. marked by full consciousness or alertness;
- Example: "worked every moment of my waking hours"
[syn: waking, wakeful]


The Collaborative International Dictionary of English v.0.48:

Wakeful \Wake"ful\, a. Not sleeping; indisposed to sleep; watchful; vigilant. [1913 Webster] Dissembling sleep, but wakeful with the fright. --Dryden. [1913 Webster] -- Wake"ful*ly, adv. -- Wake"ful*ness, n. [1913 Webster]
WordNet (r) 3.0 (2006):

wakeful adj 1: carefully observant or attentive; on the lookout for possible danger; "a policy of open-eyed awareness"; "the vigilant eye of the town watch"; "there was a watchful dignity in the room"; "a watchful parent with a toddler in tow" [syn: argus-eyed, open-eyed, vigilant, wakeful] 2: (of sleep) easily disturbed; "in a light doze"; "a light sleeper"; "a restless wakeful night" [syn: light, wakeful] 3: marked by full consciousness or alertness; "worked every moment of my waking hours" [syn: waking, wakeful]
Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "wakeful": agile, alert, alive, attentive, awake, bright, insomniac, insomnious, keen, nimble, on the, on the alert, on the ball, on the job, prompt, qui vive, quick, ready, restless, sharp, sleepless, slumberless, smart, unblinking, unnodding, unsleeping, unwinking, wide-awake