nonsubstitutionary

18 LETTERS · 7 SYLLABLES · STARTS WITH N

nonsubstitutionary is a valid 18-letter word worth 23 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1N1S1U1B3S1T1I1T1U1T1I1O1N1A1R1Y4

1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does nonsubstitutionary mean?