RichThesaurus
wideawake
wideawake
synonyms
vigilant
watchful
on the ball
ready
alert
all ears
Argus-eyed
keeping a weather eye on things
instant
heedful
on the nose
on the qui vive
punctual
smart
cagey
on guard
timely
prompt
swift
willing
rapid
not missing a trick
on the alert
apt
prepared
wary
brisk
observant
precise
circumspect
on the button
keeping one's eyes peeled
on the dot
on time
instantaneous
attentive
unhesitating
eager
efficient
quick
speedy
beady-eyed
chary
immediate
cautious
on one's toes
careful
expeditious
leery
regardful
more synonyms
wideawake
antonyms
inattentive
slow
late
negligent
tardy