Stabbing and murder for trivial reason have become the order of the day.
He is very short-tempered and gets irritated on trivial matters.
It is such a trivial matter that you should forget it.
They quarrel about trivial things.
He wastes time arguing on trivial issues.
Why are you fighting over a trivial matter?
He has quarrelled with many people over trivial things.
Getting annoyed on trivial issues indicates mental sickness.