Answer: inarticulate

AnswerCrossword Clue
INARTICULATETongue-tied.
INARTICULATEHardly a good speaker
inarticulateHaving no distinct meaning; unintelligible
inarticulateWithout joints or articulations
inarticulateNot expressed; unspoken
inarticulateNot clearly expressed or pronounced
inarticulateUnable to speak distinctly or express oneself clearly
inarticulateDenoting a brachiopod in which the valves of the shell have no hinge and are held together by muscles
inarticulatenot articulate also UNARTICULATE / any of a class of brachiopods lacking a hinge connecting the two shell valves