nonascertainableness

20 LETTERS · 7 SYLLABLES · STARTS WITH N

nonascertainableness is a valid 20-letter word worth 24 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1N1A1S1C3E1R1T1A1I1N1A1B3L1E1N1E1S1S1

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

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does nonascertainableness mean?