POSTPAID Meaning of POSTPAID in English post ‧ paid /ˌpəʊstˈpeɪd◂ $ ˌpoʊst-/ BrE AmE adjective costing nothing to send because the amount has already been paid:The kit costs $33.95 postpaid. Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012