| Main Entry: | |
| 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 |
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