unflappability

English

Etymology

From unflappable +‎ -ity (rather than un- +‎ flappability, which is probably a back-formation from this word.)

Noun

unflappability (uncountable)

1. The state of being unflappable.
   • 1997 August 5, Craig R. Whitney, “Jeanne Calment, World's Elder, Dies at 122”, in The New York Times‎^[1], →ISSN:

     Longevity ran in the family; Mrs. Calment's mother lived until she was 86 and her father until he was 93. But Mr. Robine said her great strength was her unflappability. […] “She once said, ‘If you can't do anything about it, don't worry about it.’”