nondiagrammatical

17 LETTERS · 7 SYLLABLES · STARTS WITH N

nondiagrammatical is a valid 17-letter word worth 25 points in Scrabble and 32 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1N1D2I1A1G2R1A1M3M3A1T1I1C3A1L1

1 + 1 + 1 + 2 + 1 + 1 + 2 + 1 + 1 + 3 + 3 + 1 + 1 + 1 + 3 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does nondiagrammatical mean?