off-guard

pred. adj.

1.

not watching for possible danger; not alert; as, caught in an off-guard moment.

Adj.

1.

off-guard - not prepared or vigilant; "the blow caught him napping"; "caught in an off-guard moment"; "found him off his guard" Synonyms: napping, off guard, off her guard, off his guard, off one's guard, off your guard

napping, off guard, off her guard, off his guard, off one's guard, off your guard, unready