inarticulation noun. 
[,ɪnɑ:tɪkjʊ'leɪʃ(ǝ)n] rare. 
M18.[from IN-3 + ARTICULATION.]Absence of distinct articulation; inarticulate utterance.
■ Chesterfield It was by the ambiguity of the expression..not by the inarticulation of the words.  [TahlilGaran] English Dictionary ▲