nondemonstrableness

19 LETTERS · 6 SYLLABLES · STARTS WITH N

nondemonstrableness is a valid 19-letter word worth 24 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1N1D2E1M3O1N1S1T1R1A1B3L1E1N1E1S1S1

1 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does nondemonstrableness mean?