impalpable

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++im·pal·pa·ble /ɪmˈpælpəbəl/ adjective formal  1. REAL/NOT IMAGINARYimpossible to touch or feel physically 触摸不着的；感觉不到的 OPP palpable2. DIFFICULTvery difficult to understand 难懂的

Examples from the Corpus

impalpable• Roads they were then of the Sidhe and of those who have dealings with the impalpable and the evanescent.• For we have not clung to obsolete and impalpable assumptions concerning our society purely as the result of obtuseness and ignorance.• Last and most impalpable of all is public sentiment.

im·pal·pa·ble adjectiveChineseSyllable  

physically touch to or impossible Corpus feel

impalpable
im‧pal‧pa‧ble /ɪmˈpælpəbəl/ adjective formal
1. impossible to touch or feel physically
   OPP  palpable
2. very difficult to understand

im·palp·ableBrE /ɪmˈpælpəbl/ 🔊NAmE /ɪmˈpælpəbl/ 🔊 adjective (formal) that cannot be felt physically 触摸不到的；感觉不着的very difficult to understand 难以理解的；难懂的 OPP palpable