IMPALPABLE Meaning of IMPALPABLE in English im ‧ pal ‧ pa ‧ ble /ɪmˈpælpəb ə l/ BrE AmE adjective formal 1 . impossible to touch or feel physically OPP palpable2 . very difficult to understand Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012