| ADJECTIVE | all | wide-awake, unsleeping | fully awake |
|---|---|---|---|
| all | wide-awake, heads-up | fully alert and watchful |
| Meaning | fully awake. | |
|---|---|---|
| Example | "so excited she was wide-awake all night" | |
| Synonym | unsleeping | |
| Broader | awake | not in a state of sleep |
| Meaning | fully alert and watchful. | |
|---|---|---|
| Synonym | heads-up | |
| Broader | alert, watchful | Engaged in or accustomed to close observation |