invalid形容詞KK [ˏɪˋnvæləd] /ˌɪˈnvæləd/1無效的、失效的Your ticket is invalid because the event was rescheduled.因為活動改期,你的票已經無效。2不成立的、站不住腳的His argument is invalid because it rests on false data.他的論點站不住腳,因為建立在錯誤的數據上。3無效的、不正確的電腦The system says my password is invalid and won't let me in.系統顯示我的密碼無效,不讓我登入。名詞KK [ˋɪnvəlɪd] /ˈɪnvəlɪd/1病弱者、傷病者舊式She spent two years caring for her father as an invalid.她照顧臥病在床的父親兩年。動詞KK [ˋɪnvəlɪd] /ˈɪnvəlɪd/1因傷病退役、因病除役英式,常用被動He was invalided out of the army after the accident.那場意外之後,他因傷從軍中退役。