watchful

adjective

watch·​ful ˈwäch-fəl How to pronounce watchful (audio)
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 adverb
watchfulness noun
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Under his watchful eye, the new site will spotlight the finest talents in the region. Rachel Cormack, Robb Report, 9 June 2025 Emmanuel-Thomas had got his first call-up to Arsenal’s first-team squad at age 17, and there were almost two years when the teenager trained under manager Arsene Wenger’s watchful eye. Stuart James, New York Times, 6 June 2025 One Shot: How ‘Squid Game’s’ deadly carousel became a watchful eye. Liam Dillon, Los Angeles Times, 5 June 2025 Going public enables these companies to access capital and scale responsibly, under the watchful eye of both regulators and public shareholders. Tomer Niv, Forbes.com, 5 June 2025 See All Example Sentences for watchful

Word History

First Known Use

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

Time Traveler
The first known use of watchful was in the 15th century

Browse Nearby Words

Cite this Entry

“Watchful.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watchful. Accessed 17 Jun. 2025.

Kids Definition

watchful

adjective
watch·​ful ˈwäch-fəl How to pronounce watchful (audio)
ˈwȯch-
: continually on the lookout especially for danger
watchfully adverb
watchfulness noun

More from Merriam-Webster on watchful

Last Updated: - Updated example sentences
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