資料來源 : WordNet®

off-guard
     adj : not prepared or vigilant; "the blow caught him napping";
           "caught in an off-guard moment"; "found him off his
           guard" [syn: {napping}, {off-guard(a)}, {off guard(p)},
            {off one's guard(p)}, {off his guard}, {off her guard},
            {off your guard}]