or (more rarely): a feeling or idea that is not expressed
The exact meaning of inarticulate depends upon its context. For example:
unable to find good words to express oneself — as in "She gets inarticulate when she's nervous."
verbally expressing a feeling without words — as in "She uttered an inarticulate cry of despair."
unable to make oneself heard and understood — as in "She mumbled inarticulately."
unable to speak — as in "She was inarticulate with rage."
a feeling or idea that is not expressed — as in "We shared an inarticulate fear."
inability to express or understand feelings or ideas — as in "She is emotionally inarticulate, " or "Her symphony is inarticulate."
The wind was rushing hurriedly behind the tapestries, and I wished to show her (what, let me confess it, I could not all believe) that those almost inarticulate breathings, and those very gentle variations of the figures upon the wall, were but the natural effects of that customary rushing of the wind.
1 — Ligeia (71% in)
There are no more uses of "inarticulate" in Selected Tales by Poe.