watchful

英 ['wɒtʃfʊl; -f(ə)l] 美['wɑtʃfl]

• adj. 注意的；警惕的；警醒的

1. carefully observant or attentive; on the lookout for possible danger;

"a policy of open-eyed awareness"

"the vigilant eye of the town watch"

"there was a watchful dignity in the room"

"a watchful parent with a toddler in tow"

2. experiencing or accompanied by sleeplessness;

"insomniac old people"

"insomniac nights"

"lay sleepless all night"

"twenty watchful, weary, tedious nights"- Shakespeare