Impatient

Webster's Dictionary of the English Language

·noun One who is impatient.

II. Impatient ·adj Not to be borne; unendurable.

III. Impatient ·adj Prompted by, or exhibiting, impatience; as, impatient speeches or replies.

IV. Impatient ·adj Not patient; not bearing with composure; intolerant; uneasy; fretful; restless, because of pain, delay, or opposition; eager for change, or for something expected; hasty; passionate;

— often followed by at, for, of, and under.