We both got impatient while waiting in line.
The kid was impatient
Yes, sure. e.g Rudy is one of the most impatient person I have ever met.
He's foible was that he was impatient and easily annoyed.
The juror was impatient for the court session to end.
The sentence "Dara grew impatient and angrily left the restaurant" is intransitive because the verb "left" does not take a direct object.
The teacher grew impatient with the boy who wouldn't pay attention.
left became is a state verb impatient is an adjective angrily is an adverb
The impatient audience milled around by the theater doors
most impatient
In the sentence, Dara became impatient and left the restaurant, there are two verbs, became and left. Left is the more active of the two verbs. One might argue that becoming impatient is not actually an action. Become is a state verb.
Impatient with Gary's feckless effort, his employer fired him at the end of the first week.
I always hope that my impatience will pass quickly.