Skip to main content
off guard

off guard

51 4.2
Not ready or paying attention when something happens
  • idiom
translation icon : desprevenido
  • And they were completely caught off guard and I left.
  • caught off guard

But the moment you relax, you're off guard.

Autoplay Next

Examples

  • The sudden change in weather caught us off guard, leaving us unprepared for the heavy rain.

  • Her unexpected arrival at the party caught everyone off guard, as nobody knew she was coming.

  • Yeah, he kind of caught me off guard last night.

  • Having been caught off guard by the first kick, Paul was prepared for the second.

    Fiction book (1991)
  • The two cops realize the whole thing was an act to throw them off guard, and it worked.

    Fiction book (1992)
  • And she was caught off guard by her reaction to these scenes.

  • That spring, conservative governments have been caught off guard by the speed of events.

  • The knock at the back door caught her off guard and brought back painful memories.

    Fiction book (1991)
  • So we were both caught off guard and we had this kind of nice rapport.

  • I think NVIDIA just caught everybody off guard and just shook the world up.

Synonyms

unsuspecting
vsoff guard
53 4.2

Not aware that someone might harm or trick you

is broader, covering lack of readiness beyond expecting harm
to caught off guard
vsoff guard
29 4.1

Surprised and not ready for something that happens suddenly

focuses on being unready rather than only sudden surprise
unguarded
vsoff guard
8 5.1

Not careful about what you say or do, so you reveal more than you want

is focused on physical protection rather than alertness or surprise
unwary
vsoff guard
6 6.1

A person who is not careful about danger and is easily tricked

is more about general unpreparedness rather than ongoing carelessness
off-guard
vsoff guard
3 4.9

Not ready or alert when something surprises you

has identical meaning but is the hyphenated variant
off one's guard
vsoff guard
6.6

Not paying attention and not ready for danger or surprise

is the possessive phrasing of the same idea
off (one's) guard
vsoff guard
5.8

Not paying attention and not ready for surprise or danger

is the basic expression without parentheses but same meaning
off your guard
vsoff guard
7.2

Not ready and not paying attention when something surprises you

uses general phrasing rather than direct personal address
caught off the back foot
vsoff guard
  • UK
9.1

Surprised and not ready to deal with a sudden problem

is more general unpreparedness, not necessarily vulnerable when surprised

Antonyms

137 3.5

A state of being ready and watchful for possible danger

1 2.3

The state of being prepared to act immediately

How Prepared

alert
297 2.8
prepared
103 1.3
off guard
51 4.2
unaware
175 2.9

Surface Forms

off guard positive

Morphology

off + guard

The adjective 'off guard' is directly derivable from 'off' indicating absence or removal and 'guard' meaning protection or alertness, so a learner who knows both words can infer 'not guarded / not alert' and thus 'surprised or unprepared'. This negation pattern (compare off duty, off balance) is common in English and across languages, making the expression immediately comprehensible to a B1 learner.

Etymology

Off guard may come from the image of a guard who is off duty or has left their post, so the place is not watched. So, if you are off guard, you are 'not ready' or 'surprised'.