c 3 o 1 n 1 s 1 t 1 i 1 t 1 u 1 t 1 i 1 o 1 n 1 a 1 l 1 i 1 s 1 m 3 s 1
18 letters · 22 points in Scrabble
Meaning
noun a constitutional system of government (usually with a written constitution)
noun advocacy of a system of government according to constitutional principles