Synonyms of wide-awake

1 Syllable

prompt, bright, sharp, quick

2 Syllables

ready, alert, wired, nimbler, watchful, sharp-eyed, wide-eyed, wary, nimblest, sleepless, warier, prompter

3 Syllables

unsleeping, active, vigilant, wakeful, observant, advertent, alerting, insomniac, spirited, lively, open-eyed

4 Syllables

intelligent, intentive, attentive