[un.flap.pa.ble] adj [[1]un- + [1]flap (state of excitement) + -able] (1954): marked by assurance and self-control -- un.flap.pa.bil.i.ty n -- un.flap.pa.bly adv
UNFLAPPABLE
Meaning of UNFLAPPABLE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012