off-guard

Adjective

WordNet 3.0

Adjective (1)

  1. not prepared or vigilant“the blow caught him napping”“caught in an off-guard moment”“found him off his guard”Synonyms: nappingoff guardoff one's guardoff his guardoff her guardoff your guard
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Webster's Dictionary (GCIDE)

off-guard \off-guard\ pred. adj. not watching for possible danger; not alert; as, caught in an off-guard moment. [WordNet 1.5]
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