UNFLAPPABLE


Meaning of UNFLAPPABLE in English

un ‧ flap ‧ pa ‧ ble /ʌnˈflæpəb ə l/ BrE AmE adjective informal

having the ability to stay calm and not become upset, even in difficult situations

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.