RichThesaurus
off (one's) guard
off (one's) guard
synonyms
not ready
surprised
unwatchful
incompetent
not up to
incapable
ill-equipped
unrehearsed
ineligible
unprepared
unequipped
unqualified
unready
caught on the hop
taken aback
unsuspecting
not equal to
caught napping
unfit
off (one's) guard
antonyms
prepared
ready