Hesitant.
That stutters.
An instance of stuttering.
A speech disorder in which the flow of speech is disrupted by involuntary repetitions and prolongations of sounds, syllables, words or phrases, and by involuntary silent pauses or blocks in which the stutterer is unable to produce sounds.
Of or pertaining to calling; used in calling or vocation.
Used in address; appellative (said of that case or form of the noun, pronoun, or adjective, in which a person or thing is addressed). For example "Domine, O Lord"
The vocative case
A word in the vocative case
Something said to (or as though to) a particular person or thing; an entreaty, an invocation.