2. (adj)insomniac, sleepless, watchful experiencing or accompanied by sleeplessness Synonyms: lidless, insomniac, watchful, sleepless, alert Antonyms: asleep(p)
Synonyms, Thesaurus & Antonyms of 'watchful'
English Synonyms and Antonyms
1. watchful Alert, ready, and wide-awake refer to a watchful promptness for action. Ready suggests thoughtful preparation; the wandering Indian is alert, the trained soldier is ready. Ready express Synonyms: alert, active, lively, prepared, vigilant, brisk, nimble, prompt, watchful, hustling, on the watch, ready, wide-awake Antonyms: drowsy, dull, heavy, inactive, slow, sluggish, stupid
Synonyms for watchful 
