irascibility
short temper
spleen
quick temper

She has a very short temper and lives with her parents.

She is full of pride and has a short temper.

Or is Tom merely a victim of a short temper?

Of course, Tom has a short temper, so it wasn't a good idea.

Mark has a short temper and a pregnant wife who wants a television set more than a baby.

He has a very short temper, but doesn't know when to give up.

My brother had a long memory and a short temper.

It does not help that he has a rather short temper.

His short temper has led him into trouble on many occasions.

He has a short temper, but cares about his friends.