unutterable sin

15 LETTERS · STARTS WITH U

unutterable sin is a valid 15-letter word worth 16 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

U1N1U1T1T1E1R1A1B3L1E1S1I1N1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 =16 PTS

DOUBLE WORD → 32TRIPLE WORD → 48

MEANING

What does unutterable sin mean?