impenetrableness

NOUN /ɪm'pɛnɪtrəbəlnɛs/
16 LETTERS · 6 SYLLABLES · STARTS WITH I

impenetrableness is a valid 16-letter word worth 22 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1M3P3E1N1E1T1R1A1B3L1E1N1E1S1S1
1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does impenetrableness mean?

NOUN · 1 SENSE
1

Incomprehensibility by virtue of being too dense to understand.