The manager cut all unnecessary expenses to save costs.
The meeting was unnecessary since all decisions were already made.
We will avoid unnecessary meetings from now on.
They avoid taking unnecessary risks at any cost.
They are smart enough to avoid unnecessary drama.
They were wise enough to avoid unnecessary drama.
She tries not to buy unnecessary things too often.
I stopped buying unnecessary things in the long run.
I managed not to buy anything unnecessary this time.
He advised me not to spend money on unnecessary things.
They avoid buying unnecessary things, especially online.
They determined to avoid unnecessary conflicts this year.