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Definition of watchful
watchful
/ˈwɑːtʃ.fəl/
watch · ful
Adverb:watchfully
watchful Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 10k
Syllables
2
watchful Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Watching or observing someone or something closely; alert and vigilant to possible danger, difficulty, or opportunity.
Example
"The young children played safely in the park under the watchful eye of their grandmother."
Synonyms
View all synonyms for watchful Antonyms
View all antonyms for watchful• Rhymes for watchful
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Word Origin & Etymology
Formed in Middle English from the noun 'watch' (from Old English 'wæcce', meaning a state of remaining awake or on guard) combined with the suffix '-ful'.
Cite this Entry
Wordmom. (2026). Definition of Watchful. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/watchful