watchful

adjective

watch·​ful ˈwäch-fəl 

ˈwȯch-

1

archaic

a

: not able or accustomed to sleep or rest : wakeful

b

: causing sleeplessness

c

: spent in wakefulness : sleepless

2

: carefully observant or attentive : being on the watch

watchfully

ˈwäch-fə-lē 

ˈwȯch-

adverb

watchfulness noun

Synonyms

• alert
• Argus-eyed
• attentive
• awake
• observant
• open-eyed
• tenty [Scottish]
• tentie
• vigilant
• wide-awake

Choose the Right Synonym for watchful

watchful, vigilant, wide-awake, alert mean being on the lookout especially for danger or opportunity.

watchful is the least explicit term.

the watchful eye of the department supervisor

vigilant suggests intense, unremitting, wary watchfulness.

eternally vigilant in the safeguarding of democracy

wide-awake applies to watchfulness for opportunities and developments more often than dangers.

wide-awake companies latched onto the new technology

alert stresses readiness or promptness in meeting danger or in seizing opportunity.

alert traders anticipated the stock market's slide

Examples of watchful in a Sentence

We need to be more watchful of our children.

The hotel is being built under the watchful eye of its architect.

Recent Examples on the Web

The housemates will live under the watchful eye of Big Brother 24 hours a day and avoid nomination from their fellow housemates and eviction from the public vote. —Armando Tinoco, Deadline, 6 Oct. 2024

Kelly Clarkson’s home line at Wayfair is one to keep a watchful eye on thanks to its affordable yet luxurious collection of decor and furniture. —Ali Faccenda, Peoplemag, 20 Sep. 2024

And while the perpetrator could very well be The Night Stalker, Maxine falls under the suspicion and watchful eyes of a pair of LA detectives (Michelle Monaghan and Bobby Cannavale). —Tim Lammers, Forbes, 13 Sep. 2024

Landry Jones carries the film with a watchful caution not dissimilar to seeing history whoosh past his eyes. —Sophie Monks Kaufman, IndieWire, 3 Sep. 2024

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Phrases Containing watchful

• keep a watchful eye on (someone or something)
• under the watchful/vigilant eye of

Kids Definition

watchful

adjective

watch·​ful ˈwäch-fəl 

ˈwȯch-

: continually on the lookout especially for danger

watchfully

-fə-lē 

adverb

watchfulness noun