unsinkability

13 LETTERS · 6 SYLLABLES · STARTS WITH U

unsinkability is a valid 13-letter word worth 22 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

U1N1S1I1N1K5A1B3I1L1I1T1Y4

1 + 1 + 1 + 1 + 1 + 5 + 1 + 3 + 1 + 1 + 1 + 1 + 4 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does unsinkability mean?