off guard

About 0.96 uses per million words.

Meaning

1. prepositional phrase Not vigilant; unprepared; inattentive.

   His sudden appearance at the office caught her completely off guard.

2. prepositional phrase Unexpectedly or by surprise. (Can we add an example for this sense?)

Similar words

napping off-guard off her guard off his guard off your guard unready off balance offhanded offscreen unexpected