adj · 3 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ˈwɒt͡ʃ.fəl/
General-American:/ˈwɔt͡ʃ.fəl/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:W AA1 CH F AH0 L
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Fully observant, vigilant, or aware.
Definition source: English Wiktionary via Wiktextract
Examples
The teacher kept a watchful eye on her pupils during the school trip.
Meaning relationships
Synonyms: jealous
Antonyms: none provided
2
adjective
Meaning 2
engaged in or accustomed to close observation
Definition source: Princeton WordNet 3.0
Examples
caught by a couple of alert cops
alert enough to spot the opportunity when it came
constantly alert and vigilant, like a sentinel on duty
Meaning relationships
Synonyms: alert
Antonyms: none provided
3
adjective satellite
Meaning 3
experiencing or accompanied by sleeplessness- Shakespeare
Definition source: Princeton WordNet 3.0
Examples
insomniac old people
insomniac nights
lay sleepless all night
twenty watchful, weary, tedious nights
Meaning relationships
Synonyms: insomniac, sleepless
Antonyms: none provided
History
Etymology
From Middle English waccheful, equivalent to watch + -ful. Compare West Frisian waaks (“watchful”), Dutch waaks, waakzaam (“watchful”), German wachsam (“watchful”), Swedish vaksam (“watchful”).
Across languages
Translations
44 source translations are retained for this English entry.
Amharic:
ንቁ
(nəḳu)
— observant, vigilant and aware
Armenian:
զգոն
(zgon)
— observant, vigilant and aware
Bengali:
সতর্ক
(śotork)
— observant, vigilant and aware
Bulgarian:
бдителен
(bditelen)
— observant, vigilant and aware
Bulgarian:
внимателен
(vnimatelen)
— observant, vigilant and aware
Danish:
vågent
— observant, vigilant and aware
Dutch:
waakzaam
— observant, vigilant and aware
French:
attentif
— observant, vigilant and aware
French:
vigilant
— observant, vigilant and aware
Galician:
fiteiro
— observant, vigilant and aware
Galician:
atento
— observant, vigilant and aware
Galician:
vixiante
— observant, vigilant and aware
German:
wachsam
— observant, vigilant and aware
Gothic:
𐌿𐍃𐍃𐌺𐌰𐍅𐍃
(usskaws)
— observant, vigilant and aware
Hindi:
सजग
(sajag)
— observant, vigilant and aware
Irish:
airdeallach
— observant, vigilant and aware
Irish:
cathaiseach
— observant, vigilant and aware
Japanese:
注意深い
(chūi-bukai)
— observant, vigilant and aware
Latin:
vigilax
— observant, vigilant and aware
Latin:
evigilans
— observant, vigilant and aware
Latvian:
modrs
— observant, vigilant and aware
Māori:
matatū
— observant, vigilant and aware
Māori:
mataara
— observant, vigilant and aware
Māori:
ohiti
— observant, vigilant and aware
Māori:
owhiti
— observant, vigilant and aware
Māori:
whakamātaki
— observant, vigilant and aware
Māori:
whakamatatū
— observant, vigilant and aware
Māori:
hihiwa
— observant, vigilant and aware
Māori:
matakana
— observant, vigilant and aware
Māori:
hiwahiwa
— observant, vigilant and aware
Māori:
tūmatohi
— observant, vigilant and aware
Norwegian Bokmål:
vaktsom
— observant, vigilant and aware
Old English:
wacor
— observant, vigilant and aware
Portuguese:
vigilante
— observant, vigilant and aware
Portuguese:
alerta
— observant, vigilant and aware
Portuguese:
atento
— observant, vigilant and aware
Romanian:
vigilent
— observant, vigilant and aware
Romanian:
atent
— observant, vigilant and aware
Russian:
бди́тельный
(bdítelʹnyj)
— observant, vigilant and aware
Sanskrit:
प्रबुध्
(prabudh)
— observant, vigilant and aware
Scottish Gaelic:
faireil
— observant, vigilant and aware
Spanish:
atento
— observant, vigilant and aware
Spanish:
avizor
— observant, vigilant and aware
Ottoman Turkish:
سهران
(sehran)
— observant, vigilant and aware