inarticulate

/ɪn.ɑːˈtɪk.jʊ.lət/adjective

Spoken in a way that does not form clear, recognizable words.

Example sentence

“He gave an inarticulate mumble and turned away.”

Can describe the person or the sounds: an inarticulate speaker, an inarticulate cry of rage.

Related words

inboundMoving toward a place; arriving rather than leaving.inadvertentDone by accident, without meaning to or noticing.incandescentGlowing with light because of intense heat; brilliantly bright.impudentRude and disrespectful in a bold, shameless way.incentiveServing to encourage action; motivating people to do something.improviseTo create or perform something on the spot, relying on instinct and imagination instead of a prepared plan.