communicatory,
communicative able or tending to communicate; "was a communicative person and quickly told all she knew"- W.M.Thackeray
inarticulate,
unarticulate without or deprived of the use of speech or words; "inarticulate beasts"; "remained stupidly inarticulate and saying something noncommittal"; "inarticulate with rage"; "an inarticulate cry"