incomprehensibility

NOUN
19 LETTERS · 8 SYLLABLES · STARTS WITH I

incomprehensibility is a valid 19-letter word worth 33 points in Scrabble and 38 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1C3O1M3P3R1E1H4E1N1S1I1B3I1L1I1T1Y4
1 + 1 + 3 + 1 + 3 + 3 + 1 + 1 + 4 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 4 =33 PTS
DOUBLE WORD → 66TRIPLE WORD → 99
MEANING

What does incomprehensibility mean?