underproposition

16 LETTERS · 6 SYLLABLES · STARTS WITH U

underproposition is a valid 16-letter word worth 21 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
U1N1D2E1R1P3R1O1P3O1S1I1T1I1O1N1
1 + 1 + 2 + 1 + 1 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does underproposition mean?

1