without or deprived of the use of speech or words; "inarticulate beasts"; "remained stupidly inarticulate and saying something noncommital"; "inarticulate with rage"; "an inarticulate cry"
If someone is inarticulate, they are unable to express themselves easily or well in speech. Inarticulate and rather shy, he had always dreaded speaking in public articulate
{s} unclear, indistinct; not understandable, incomprehensible; unable to express oneself in words; speechless (with rage or surprise); not spoken or expressed; not jointed (Anatomy, Zoology)