dunderheadedness

16 LETTERS · 5 SYLLABLES · STARTS WITH D

dunderheadedness is a valid 16-letter word worth 23 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2U1N1D2E1R1H4E1A1D2E1D2N1E1S1S1

2 + 1 + 1 + 2 + 1 + 1 + 4 + 1 + 1 + 2 + 1 + 2 + 1 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does dunderheadedness mean?