u 1 n 1 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 l 1 y 4
18 letters · 23 points in Scrabble
Meaning
adverb in an unconstitutional manner
originFrom unconstitutional + -ly or un- + constitutionally.
Etymology from Wiktionary, CC BY-SA 3.0