| Main Entry: | wakeful |
| Part of Speech: | adjective |
| Definition: | alert, restless |
Synonyms: |
alive, astir, attentive, careful, heedful, insomniac, insomnious, observant, on guard, on the alert, on the lookout, on the qui vive, sleepless, unsleeping, vigilant, waking, wary, watchful, wide-awake |
Antonyms: |
sleepy, unaware |
| Main Entry: | awake |
| Part of Speech: | adjective |
| Definition: | conscious; alert |
Synonyms: |
alive, aroused, attentive, awakened, aware, cognizant, excited, heedful, knowing, observant, on guard, roused, vigilant, wakeful, waking, watchful |
Antonyms: |
asleep, unconscious |
| Main Entry: | sleepless |
| Part of Speech: | adjective |
| Definition: | insomniac, restless |
Synonyms: |
active, alert, antsy*, anxious, bustling, edgy, fidgeting, fidgety, jumpy, nervous, on edge, strung out, tossing and turning, troubled, unsettled, wakeful, wide-awake, wired, worried |
| Main Entry: | vigilant |
| Part of Speech: | adjective |
| Definition: | careful, watchful |
Synonyms: |
acute, agog, alert, anxious, attentive, aware, cautious, circumspect, guarded, keen, looking for, looking to, observant, on alert, on guard, on the ball, on the job, on the lookout, on the qui vive, on toes, open-eyed, sharp, sleepless, unsleeping, waiting on, wakeful, wary, wide-awake, with eyes peeled, with weather eye open |
Antonyms: |
careless, impulsive, inattentive, indiscreet, negligent |
| Main Entry: | watchful |
| Part of Speech: | adjective |
| Definition: | on the lookout |
Synonyms: |
alert, all ears, attentive, careful, cautious, chary, circumspect, glued, guarded, heedful, hooked, keen, not missing a trick, observant, on guard, on one's toes, on the ball, on the job, on the qui vive, on the watch, open-eyed, prepared, ready, see after, see to, suspicious, unsleeping, vigilant, wakeful, wary, wide-awake, with eyes peeled |
Antonyms: |
inattentive, negligent |
| Main Entry: | open-eyed |
| Part of Speech: | adjective |
| Definition: | alert |
Synonyms: |
active, all ears, bright, cagey, careful, circumspect, clever, fast on the draw, good hands, heads up, heedful, hip*, intelligent, jazzed, observant, on guard, on one's toes, on the ball, on the job, on the lookout, on the qui vive, perceptive, psyched up, quick*, ready, sharp, spirited, switched on, vigilant, wakeful, wary, watchful, wide-awake, wired, wise*, with it |