RichThesaurus
vigilant
vigilant
synonyms
watchful
alert
attentive
observant
heedful
wary
circumspect
on the lookout
careful
on the qui vive
chary
on guard
cautious
on the ball
prudent
aware
mindful
cagey
wakeful
guarded
all ears
leery
regardful
ready
sharp
canny
awake
on the alert
wide-awake
on one's toes
on one's guard
discreet
judicious
open-eyed
perceptive
protective
on the job
quick
on one’s toes
not missing a trick
beady-eyed
bright
intelligent
politic
eagle-eyed
sharp-eyed
solicitous
wise
calculating
wide awake
more synonyms
vigilant
antonyms
inattentive
careless
incautious
heedless
unaware
unobservant
indiscreet
uncareful
rash
thoughtless
negligent
reckless
unguarded
unmindful
asleep
foolish
indifferent
unwatchful
unconcerned
imprudent
unwary
unconscious
ignorant
slow
absent-minded
wasteful
weary
unresponsive
confident
inconsiderate
partial
unknowing
threatening
hasty
distrait
divided
clumsy
late
distracted
unsuspicious
impassive
awkward
sluggish
harmful
hostile
unconcentrated
inattentive
undexterous
bold
unwise
more antonyms