negative answer

15 LETTERS · STARTS WITH N

negative answer is a valid 15-letter word worth 21 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1E1G2A1T1I1V4E1A1N1S1W4E1R1

1 + 1 + 2 + 1 + 1 + 1 + 4 + 1 + 0 + 1 + 1 + 1 + 4 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does negative answer mean?