UNIMPEDED Meaning of UNIMPEDED in English un ‧ im ‧ ped ‧ ed /ˌʌnɪmˈpiːdəd◂, ˌʌnɪmˈpiːdɪd◂/ BrE AmE adjective happening or moving without being stopped or having difficulty:unimpeded progress Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012