INARTICULATE

I. adjective see: articulate Date: 1603 1. uttered or formed without the definite articulations of intelligible speech, b. incapable of speech especially under stress of emotion ; mute , incapable of being expressed by speech , not voiced or expressed ; unspoken , incapable of giving coherent, clear, or effective expression to one's ideas or feelings, relating to, characteristic of, or being an ~ or its shell, ~ly adverb ~ness noun II. noun Date: 1952 any of a class (Inarticulata) of brachiopods lacking a hinge connecting the two shell valves